Math, asked by virgoavg, 4 months ago

Factorise z^2 + 14z - 15

Answers

Answered by yaargaddar1

2

Answer:

splitting middle term

Step-by-step explanation:

z^2+15z -z-15

z(z + 15) -1(z+15)

(z-1) * (z+15) = 0

z= 1 and -15

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