Question

Factorize z^2 - 32 z - 105​

Answer 1

Step-by-step explanation:

$z {}^{2} - 32z - 105 \\ = z {}^{2} - (35 - 3)z - 105 \\ = z {}^{2} - 35z + 3z - 105 \\ = z(z - 35) + 3(z - 35) \\ = (z - 35)(z + 3)$