Question

If x is a real number such that x³ = 64, then x² + √x =?

Answer 1

If x³=64
,x=∛64=4
x²=16
√x=4
x²+√x=16+2
⇒18

Answer 2

`x^3 = 64\\ \\x=\sqrt[3]{64}\\ \\x=4 \\ \\ \\ x^2 + √( x )=4^2+√(4)=16+2 =18`