Question

please answer to this question its urgent ☆☆☆☆ chapter exponents and powers
questions is <<<< find the value of x
please do in ruff notebook? ?☆☆☆

Answer 1

just relax
1st answer is, x³=729
x=³√729
x=9
2nd answer is, (-6)power 5 × (-6)power 3-m = (-6)³
so, 5+(3-m) = 3
5+3-m = 3
8-m = 3
-m = 3-8
-m = -5
m = 5
3rd answer is, (-8/9)power 15 ÷ (-8/9)power x = (8/9)²
so, 15-x = 3
-x = 3-15
-x = -12
x = 12