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In this app the questions are carefully graded from easy up to difficult in 30 steps.

Expand polynomials of form:

a(x ± b)
a(bx ± c)
x(ax ± b)
ax(x ± b)
ax(bx ± c)
−a(bx ± c)
−ax(bx ± c)
(x + a)(x + b)
(x − a)(x + b)
(x − a)(x − b)
(x ± b)²
(ax ± b)(cx ± d)
(ax − b)²
x(bx + c)(dx + e)
a(bx − c)(bx + c)
ax(bx − c)(dx − e)
-ax(bx + c)(bx − c)
ax(bx + c)²
-ax(bx + c)(bx − c)
(x + a)(x + b)(x + c)

(The variables, other than x, will be replaced by numbers)
 

A question

A tutor screen

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A worked example

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A response

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A response

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