Question

(7-x) mũ 3 +(11-7) mũ 2=141

giải giúp mik nhé :>>:))))

Answer 1

11-7 hay 11-x bạn

Answer 2

\(\left(7-x\right)^3+\left(11-7\right)^2=141\\ \left(7-x\right)^3+4^2=141\\ \left(7-x\right)^3+16=141\\ \left(7-x\right)^3=141-16=125=5^3\\ Nên:7-x=5\\ Vậy:x=7-5=2\)

Answer 3

(7-x)³+(11-7)²=141

(7-x)³+4²=141

(7-x)³+16=141

(7-x)³=141-16

(7-x)³=125

(7-x)³=5³

7-x=5

r đó tự làm =)))