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Factorise three quadratic equations of the form $x^2+bx+c$.

The first has two negative roots, the second has one negative and one positive, and the third is the difference of two squares.

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Factorise the following quadratic equations

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$\\simplify{x^2+{v1+v2}x+{v1*v2}}$

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$\\simplify{x^2+{v3+v4}x+{v3*v4}}$

[[0]]

$\\simplify{x^2+{v5+v6}x+{v5*v6}}$

[[0]]

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