Question
Solve the following quadratic equation by factorisation method:
$m^{2}+14m+13=0$
$m^{2}+14m+13=0$
✓
Answer
$m^2 + 13m + m + 13 = 0$
$m(m + 13) + 1(m + 13) = 0$
$(m + 13)(m + 1) = 0$
$m = -13$ or $m = -1$
$m(m + 13) + 1(m + 13) = 0$
$(m + 13)(m + 1) = 0$
$m = -13$ or $m = -1$
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