Question

c) 4.(x + 5)³ -7 = 101   

Answer 1

\(4\left(x+5\right)^3=108\Leftrightarrow\left(x+5\right)^3=27\Leftrightarrow x+5=3\Leftrightarrow x=-2\)

Answer 2

\(4\left(x+5\right)^3-7=101\)

<=>\(4\left(x+5\right)^3=108\)

<=>\(\left(x+5\right)^3=27\)

<=>x+5=3

<=>x=-2