Question

вот, лови .................

Answer 1

Объяснение:

1)8-16=-8

2)2х-14у+6z

3)-8.8+x-4.7-x=-13.5

4)3a^2+a+6

5)3x=21

x=7

6)x^11

7)2x^3+16x^2-6x

8)ab+4a-3b-12

9)x(4-y)

10.a^2-25

11.(a-7)^2

12.y=-3×-2+9=6+9=15

13.7x(x^2-9)=0

7x=0 x^2=9

x=0 x=3

14.x^2-2x+1-x^2+9=-2x+10