Question

factorise
- 4x^5– 16x^3y – 20x^2y^2​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

$-4x^2\left(x^3+4xy+5y^2\right)$

Step-by-step explanation:

=$-4x^5-16x^3y-20x^2y^2$

= $-4x^2x^3-16x^2x-20x^2y^2$

= $-4x^2x^3+4\cdot \:4x^2x+5\cdot \:4x^2y^2$

= $-4x^2\left(x^3+4xy+5y^2\right)$

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