Question

Алгебра 7 класс, страница 39

Answer 1

Ответ:

1)x⁸⁰÷x¹⁵÷x*=x⁶⁰

x⁶⁵÷x*=x⁶⁰

x*=x⁵

*=5

2)a*÷a⁴÷a=a⁷

a*÷a³=a⁷

a*=a¹⁰

*=10

3)(-8k/15)³⁸=(-8k/15)³⁶÷(-8k/15)*÷(-8k/15)

(-8k/15)³⁵÷(-8k/15)*=(-8k/15)³⁸

(-8k/15)*=(-8k/15)^-3

*=-3

4)(1,1t)⁸÷(1,1t)÷(1,1t)*=1,1t

(1,1t⁷)÷(1,1t)*=1,1t

(1,1t)*=(1,1t)⁶

*=6