just expand it
x^2 + 3x = 4x^2 + 4
0 = 3x^2 - 3x + 4
or
3x^2 - 3x + 4 = 0
What part of this did you find difficult?
Write the quadratic equation in general form. Do not solve the equation.
x(x + 3) = 4x^2 + 4
1 answer