Question

срочняк пж.....,.....​

Answer 1

Ответ:

5. 1) 6a^4+9a^3b=3a^3(2a+3b)

2) 18m^2-2n^2=2(9m^2-n^2)=

=2(3m-n)(3m+n)

6. 6(x-3)-2(x+5)=2-x

6x-18-2x-10=2-x

6x-2x+x=2+18+10

5x=30

x=30:5

x=6