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Simplifying
-4k2 + -12 = -48
Reorder the terms:
-12 + -4k2 = -48
Solving
-12 + -4k2 = -48
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '12' to each side of the equation.
-12 + 12 + -4k2 = -48 + 12
Combine like terms: -12 + 12 = 0
0 + -4k2 = -48 + 12
-4k2 = -48 + 12
Combine like terms: -48 + 12 = -36
-4k2 = -36
Divide each side by '-4'.
k2 = 9
Simplifying
k2 = 9
Take the square root of each side:
k = {-3, 3}
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