Question

Which expression is equivalent to a product of factors (ax – b)(ax + b) such that a and b are integers?

50x2 – 25
81x2 – 27
40x2 – 16
49x2 – 36

Answer 1

@AlexandervonHumboldt2 @Nnesha @Michele_Laino

Answer 2

a^2x^2-b^2

Answer 3

so loo whixh of then are similar

Answer 4

sqrt49=7
sqrtx^2=x
sqrt36=6 so D

Answer 5

(ax-b)(ax+b)=(a^2x^2-b^2)