Question

What is the solution of StartRoot x + 2 EndRoot minus 15 = negative 3?

x = 142
x = 232
x = 322
no solution

Answer 1

x = 142

Explanation:

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Answer 2

x = 142

Explanation:

The problem;

`√(x+2) - 15 = -3`

Inverse operations;

`√(x+2) -15 = -3\\ +15 +15\\\\\\\\√(x+2) = 12\\\\`

Now undo the square, by squaring both sides;

`√(x+2) = 12\\.^(2) \\\\\\ \\x+2 = 144`

Inverse oeprations;

x + 2 = 144

-2 -2

x = 142