Question

Solve for c in terms of a, b, and d

Answer 1

`\begin{gathered} d=b^2-4ac \\ d+4ac=b^2 \\ 4ac=b^2-d \\ \text{divide both sides by 4a} \\ (4ac)/(4a)=(b^2-d)/(4a) \\ c=(b^2-d)/(4a) \\ c=(d-b^2)/(-4a) \end{gathered}`

A.