Question

-4+3b^2=143

Simplest radical form

Answer 1

`- 4 + 3b {}^(2 ) = 143 \\ 3b {}^(2) = 143 + 4 \\ 3b {}^(2) = 147 \\ b {}^(2) = (147)/(3) \\ b {}^(2) = 49 \\ b = 7`