Math, asked by navneetroy50, 9 months ago

factorise: 5z^2- 16z - 21

Answers

Answered by BrainlyHulk

2

Answer:

$5 {z}^{2} - 16z - 21 \\ = 5 {z}^{2} - 21z + 5z - 21 \\ = z(5z - 21) + (5z - 21) \\ = (z + 1)(5z - 21)$

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