Question

How do you factor d²−8d+15?

Answer 1

$\huge\mathfrak{ANSWER~:}$

$\huge = {d}^{2} - 8d + 15 \\ \\ \huge= {d}^{2} - 3d - 5d + 15 \\ \\ \huge = \: d(d - 3) - 5(d - 3) \\ \\ \huge = (d - 3)(d - 5)$