Question

What is the solution -10 + sqrt x+8=-4

Answer 1

`x=28`

Explanation:

`-10+√(x+8)=-4`

⭆ Add 10 to both sides:-

`-10+√(x+8)+10=-4+10`

`√(x+8)=6`

⭆ Square both sides:-

`x+8=36`

⭆ Subtract 8 from both sides:-

`x+8-8=36-8`

`x=28`

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Answer 2

- 10 + √(x + 8) = - 4

Add 10 to both sides to get:
√(x + 8) = 6

Square both sides to get our binomial out of the square root:
x + 8 = 6²
x + 8 = 36

Subtract 8 to both sides to get:
x = 28