The expression (x+a)(x+b) can not be written as...

Question

a) a(x+b) + x(x+b)

b) x² + (a+b)x + ab

c) x² + abx + ab

d) x(x+a) + b (x+a)

Answer 1

(x + a)(x + b) = x² + bx + ax + ab = x² + (a + b)x + ab

It cannot be written as (c).