Jinhua's copy of Solving equations with indices 3

Error

There was an error loading the page.

Contributors

Deactivated user

Feedback

From users who are not members of Core Foundation Maths :

Deactivated user	said	Has some problems	8 years, 6 months ago
joshua boddy	said	Ready to use	8 years, 9 months ago

History

○

Deactivated user 8 years, 6 months ago

Gave some feedback: Has some problems

○

joshua boddy 8 years, 9 months ago

Gave some feedback: Ready to use

○

Deactivated user 9 years, 4 months ago

Created this as a copy of Solving equations with indices 3.

Name	Status	Author	Last Modified
Solving equations with indices 3	Ready to use	joshua boddy	01/06/2016 09:47
Jinhua's copy of Solving equations with indices 3	Has some problems	Jinhua Mathias	28/08/2024 12:15

There are 3 other versions that do you not have access to.

Question statement

Solve each of the following equations for x

Express answers either as a positive integer or as a fraction

Give any introductory information the student needs.

			Name	Type	Generated Value

a1	integer	2
b1	integer	2
c1	integer	3
d1	number	4
a2	integer	5
b2	integer	2
c2	integer	3
d2	number	25
a3	integer	2
b3	integer	5
c3	integer	3
d3	number	32
e3	integer	-3
a4	integer	3
b4	integer	4
c4	integer	2
d4	number	81
e4	rational	-3/2
a5	integer	5
b5	integer	5
c5	integer	3
d5	number	3125
e5	integer	3
f5	number	9375

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(2..5 except 4)

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `integer`

→ Used by:

"Part a)" - Minimum accepted value
"Part a)" - Maximum accepted value

Advice

The idea here is to get all powers of x on one side of the equation, and all numbers on the other. Then, raise each side of the equation to an appropriate power, so that the value of x becomes clear.

It may be useful to refamiliarise yourself with the laws of indices:

$x^a \times x^b = x^{a+b}$

$x^a \div x^b = x^{a-b}$

$x^{-a} = \frac{1}{x^a}$

$(x^a)^b = x^{ab}$

$(\frac{x}{y})^a = \frac{x^a}{y^a}$

$x^\frac{a}{b} = \sqrt[b]{x^a}$

$x^0 = 1$

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet

This question is not used in any exams.

Loading...

Error

Jinhua's copy of Solving equations with indices 3

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Deactivated user 8 years, 6 months ago

joshua boddy 8 years, 9 months ago

Deactivated user 9 years, 4 months ago

Error in variable testing condition

Error

Warning

Generated value: `integer`

Parts

Number entry

Advanced settings

Loading...

Error

Jinhua's copy of Solving equations with indices 3

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Deactivated user 8 years, 6 months ago

joshua boddy 8 years, 9 months ago

Deactivated user 9 years, 4 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Number entry

Advanced settings

Generated value: `integer`