Question

(2x-6)^2 pangkat 2=4x(x-3)

Answer 1

(2x-6)^2
= 2^2 x^2 -6^2
= 2 ( 4x2-12x) x(4x2-12x) -6(4x2-12x)
= 8x2-24x . 4x3-12x2 -24x2 +72x
= (4x3.8x2.12x2.24x) -24x2 +72x
= 4x3+96x2+24x - 24x2 +72x
=4x3+96x2 -24x2 +72x+24x
=4x3+72x2+96x

maaf kalau salah ya