360 results authored by Merryn Horrocks - search across all users.
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Question in HELM books
Simplify an algebraic fraction that is fully factorised with common factors between the numerator and denominator, and one of the variables has a larger index on the denominator. Part of HELM Book 1.4
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Question in HELM books
Simplify a fraction where the numerator and denominator are factorised and have common products, and one of the common factors is powered. Part of HELM book 1.4
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Question in HELM books
Simplify, if possible,
(a) $\frac{2}{3}x^2 + \frac{x^2}{3}$, (b) $0.5x^2 + \frac{3}{4}x^2 - \frac{11}{2}x$, (c) $3x^3 - 11x + 3yx + 11$, and (d) $-4\alpha x^2 + \beta x^2$ where $\alpha$ and $\beta$ are constants.The numbers and letters are all randomised.
Part of HELM Book 1.3
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Exam (3 questions) in HELM books
HELM Book 1.3.1 exercises
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Question in HELM books
Part of HELM Book 1.4.2
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Question in HELM books
The exercises for HELM Book 1.4.1
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Question in HELM books
The 7th task in HELM book 1.4 section 1.
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Question in HELM books
The 6th task in HELM book 1.4 section 1.
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Question in HELM books
The 5th task in HELM book 1.4 section 1.
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Question in HELM books
The 4th task in HELM book 1.4 section 1.
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Question in HELM books
The 3rd task in HELM book 1.4 section 1.
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Question in HELM books
The 2nd task in HELM book 1.4 section 1.
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Question in HELM books
The first task in HELM book 1.4 section 1.
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Exam (10 questions) in HELM books
HELM Book 1.3.1 exercises
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Question in HELM books
Factorise a quadratic, x^2+bx+c. An exam can choose whether or not a=1. Part of HELM Book 1.3
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Question in HELM books
Factorise a quadratic, ax^2+bx+c. An exam can choose whether or not a=1. Part of HELM Book 1.3
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Question in HELM books
Factorise a quadratic. Part of HELM Book 1.3
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Question in HELM books
Factorise a quadratic. Part of HELM Book 1.3
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Exam (3 questions) in HELM books
HELM Book 1.3.5 exercises
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Question in HELM books
Factorise the difference of two squares, t^2-number^2. Number is a random perfect square, or 1 over a perfect square.
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Exam (3 questions) in HELM books
HELM Book 1.3.4 exercises
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Question in HELM books
Explain why one variable is a factor but the other is not. Factorise the expression, whose factor is alphanumeric. Part of HELM Book 1.3
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Question in HELM books
Factorise a 2-term expression where the gcd can be alphanumeric. Part of HELM Book 1.3
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Question in HELM books
Factorise an expression of 2 or 3 terms where the gcd is a letter times a number. Part of HELM Book 1.3.4
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Question in HELM books
Expand (a+b)(c+d). a,b,c,d are random terms that can be +ve or -ve, and can consist of a number and/or a letter.
The answer must contain no brackets but will be accepted if it is not simplified from there.
Part of HELM Book 1.3
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Question in HELM books
Factorise two algebraic terms that have a numerical gcd > 1. Part of HELM book 1.3
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Question in HELM books
Factorise a 2-term expression by pulling out a numeric gcd. Part of HELM Book 1.3
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Question in HELM books
Factorise a+bk where a and b are non-coprime integers, and k is a letter. Part of HELM Book 1.3.4
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Question in HELM books
Expand something like a(b+c) or (b+c)a or a(bc), where a, b and c can be +ve or -ve expressions. Part of HELM Book 1.3
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Question in HELM books
Expand a binomial. Part of HELM Book 1.3