exam
Maths Puzzle
Numerical Ability
find the product
(9x-8)^2
a)81x^2+64
b)9x^2+64
c)9x^2-144x+64
d)81x^2-144x+64
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exam Other Question
x + y + 2 = 0
x y - 8
can you tell me if i factored this correctly?
64x^2-1
=x(2+8)