A= ( x – 2 ) + 2 (x – 2 ) (2x + 2 ) + 4 (x + 1 ) 24/09/2021 Bởi Autumn A= ( x – 2 ) + 2 (x – 2 ) (2x + 2 ) + 4 (x + 1 )
Đáp án: A= (x-2)+2(x-2)(2x+2)+4(x+1) A=x-2+2(2x^2+2x-4x-4)+4x+4 A=x-2+4x^2-4x-8+4x+4 A=4x^2+x-6 Bình luận
Đáp án: A= (x-2)+2(x-2)(2x+2)+4(x+1)
A=x-2+2(2x^2+2x-4x-4)+4x+4
A=x-2+4x^2-4x-8+4x+4
A=4x^2+x-6