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Sagot :
A quadratic equation is written in the form [tex]ax^{2} + bx + c = 0[/tex]
Looking at the second, third, and fourth options, we see that the highest powers are greater than two, which automatically disqualifies them from being quadratics (since the highest power in a quadratic is 2).
This makes the first option the correct choice since the expansion of the equation gives [tex]2x^{2} + 28x + 61[/tex]
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