Question

a)      -3x(3x-2y+10)

Answer 1

đề là j vậy bn

 

Answer 2

`-3x(3x-2y+10)= -3x.3x + 3x.2y - 3x.10 = -9x^2 + 6xy -30x`

Answer 3

 -3x(3x-2y+10)

=  (-3x).3x +(-2y) . (-3x) + 10.(-3x)

= -9x +6xy + -30x

=  (-9x + -30x )+6xy

=-39x +6xy 

Answer 4

à mình nhầm ;

-3x(3x-2y+10)

=-9x+6xy-30x

Answer 5

−3x(3x−2y+10)

=−3x.3x+3x.2y−3x.10

=−9x2+6xy−30x

Chúc bn học tốt

Answer 6

-3x(3x-2y+10)=-9x²+6xy-30x