3 years ago

-4+3b^2=143 Simplest radical form

1 answer:

3 0

Answer:

$- 4 + 3b {}^{2 } = 143 \\ 3b {}^{2} = 143 + 4 \\ 3b {}^{2} = 147 \\ b {}^{2} = \frac{147}{3} \\ b {}^{2} = 49 \\ b = 7$

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