Question

Anyone know the answer to get C?

Answer 1

A = 8, B = 0, C = -1

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Substitute the coefficients into the equation

0^2-4x8x(-1)

then simply your expression which gets you 32.

Answer 2

+- .35

Explanation:

8x² - 1 = 0

8x² = 1

x² = 1/8

x = √1/8

x = +- .35