Question

Solve this equation using the quadratic formula: 9n^2=4+7n

Answer 1

\[9n ^{2}=4+7n\]
\[9n ^{2}-7n-4=\]

Quadratic Formula
\[x=\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]

In the equation, a = 9, b = -7, c = -4

Now, substitute the value of a,b, and c into the formula, and you will get the result ... :)