Question

Jabarkan kemudian sederhanakan
2(x+2)² - (x+1)² ..

Answer 1

2(x+2)² - (x+1)²
=2(x+2)(x+2)-(x+1)(x+1)
=2(x²+4x+4)-(x²+2x+1)
=2x²+8x+8-x²-2x-1
=x²+6x-7
=(x+7)(x-1)

Answer 2

2(x+2)² - (x+1)² =
(x²+8x+8)-(x²+2x+1)=x²+8x+8-x²-2x-1=6x+7
semoga membantu