5k + 2 = 8 or -8

5k = 6 or -10

k = 6/5 or -2

Remember that positive numbers have TWO square roots - negative eight times negative eight is 64, also.

THIS IS SIMPLE MATH

FIGURE IT OUT!

The sqrt of 64 is +/-8, so 5k+2 = +/-8, so 5k = 6 or -10, so k = 6/5 = 1.2 or k = -2.

1.2 or -2.

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