3a-5b+(3a+3b) (6x-y)-(2x+3y) 6*(2k-3n)-3*(3k-2n) -7*(4p+3)-6*(5-7p) 3*(3a-2b)-6*(-2a+3b)...

Question

3a-5b+(3a+3b)
(6x-y)-(2x+3y)
6*(2k-3n)-3*(3k-2n)
-7*(4p+3)-6*(5-7p)
3*(3a-2b)-6*(-2a+3b)
СРОЧНО НУЖНОО

Answer 1

1) 3a-5b(3a+3b)=3a-5b*3a+3b=a*(-2b)
2) (6x-y)-(2x+3y)=6x-y-2x+3y=4x-2y
3)-28p+21-30-35p=63p+(-9)=63p-9
4)9a-6b-12a+18b= -3a-12b