Question

a) (2×+3)2=
b) (4×-5)2=
c) (2×+4).(2×-4)

Answer 1

Explicación paso a paso:

• (2x + 3)^2 = (2x)^2 + 2(2x)(3) + 3^2 = 4x^2 + 12x + 9

• (4x - 5)^2 = (4x)^2 - 2(4x)(5) + 5^2 = 16x^2 - 40x + 25

• (2x + 4)(2x - 4) = (2x)^2 - 4^2 = 4x^2 - 16