$$4x^2+4x+1 = 25$$
Answer
$$ \begin{matrix}x_1 = 2 & x_2 = -3 \\[1 em] \end{matrix} $$
Explanation
$$ \begin{aligned} 4x^2+4x+1 &= 25&& \text{move all terms to the left hand side } \\[1 em]4x^2+4x+1-25 &= 0&& \text{simplify left side} \\[1 em]4x^2+4x-24 &= 0&& \\[1 em] \end{aligned} $$
$ 4x^{2}+4x-24 = 0 $ is a quadratic equation.
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