k*k-8=-7

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Solution for k*k-8=-7 equation: 


Simplifying
k * k + -8 = -7

Multiply k * k
k2 + -8 = -7

Reorder the terms:
-8 + k2 = -7

Solving
-8 + k2 = -7

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + k2 = -7 + 8

Combine like terms: -8 + 8 = 0
0 + k2 = -7 + 8
k2 = -7 + 8

Combine like terms: -7 + 8 = 1
k2 = 1

Simplifying
k2 = 1

Take the square root of each side:
k = {-1, 1}

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