1) Simplify by factor method(z2-7z-30) / (z-10) – InterviewSolution

1.

1) Simplify by factor method(z2-7z-30) / (z-10)

Answer»

Z + 3

Step-by-step explanation:

$\frac{ {z}^{2} - 7z - 30}{z - 10}$

$\frac{ {z}^{2} - 10z + 3z - 30}{z - 10}$

$\frac{z(z - 10) + 3(z - 10)}{z - 10}$

$\frac{(z - 10)(z + 3)}{z - 10}$

$z + 3$

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