Describe each step taken to solve the equation. Then, check the solution to see if it is valid. If it is not a valid solution, explain why a) √x+6=4b) ∛x+6=4.

Step-by-step explanation:

given,

a) √x + 6 = 4

to solve the above equation subtract both side with 6

√x + 6 - 6 = 4 - 6

√x = - 2

squaring both side

(√x) ² = (-2) ²

x = 4

a) ∛x + 6 = 4

to solve the above equation subtract both side with 6

∛x + 6 - 6 = 4 - 6

∛x = - 2

cubing both side

(√x) ³ = (-2) ³

x = - 8