Question

Nhân

3x (x-2) - 5x ( 1-x) - 8(x²-3)

Answer 1

3x(x - 2) - 5x(1 - x) - 8(x² - 3)

= 3x.x - 3x.2 - 5x.1 + 5x.x - 8.x² + 8.3

= 3x² - 6x - 5x + 5x² - 8x² + 24

= -11x + 24.

Answer 2

BT

\(3x\left(x-2\right)-5x\left(1-x\right)-8\left(x^2-3\right)\)

\(=3x.x-3x.2-5x.1-5.x.x-8.x^2-8.3\)

\(=3x^2-6x-5x-5x^2-8x^2-24\)

\(=-10x^2-11x-24\)

Answer 3

\(3x\left(x-2\right)-5x\left(1-x\right)-8\left(x^2-3\right)\)

\(=3x^2-6x-5x+5x^2-8x^2+24\)

\(=-11x+24\)

Answer 4

=3x²-6x-5x+5x²-8x²+24

=3x²+5x²-8x²-6x-5x+24

=-11x+24

(bước tính 3x.x-3x.2.... thì không cần thiết khi mik làm bài nha bạn)

Answer 5

https://i.imgur.com/hxPf52u.jpg