Question

Fatore Completamente
a) 2x³+4x²+2x
b)5a²-20a+20
c)3x³+18x²+27x
d)7x²y²-14xy+7
e)9a³-25a
f)16x4-8x²+1

Answer 1

a) 2x³ + 4x² + 2x

2x .(x² + 2x + 1)
=> 2x.(x + 1)²

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b) 5a² - 20a + 20

5.(a² -4a + 4)
=> 5.(a - 2)²

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c) 3x³ + 18x² + 27x

3x .(x² + 6x - 9)
=> 3x .(x + 3)²

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d)  7x²y²  - 14xy - 7

=> 7.(x²y² -2xy - 1)

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e) 9a³ - 25a 

=> a.(9a - 25)

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f) 16x⁴ - 8x² + 1

(4x² - 4x + 1) .(4x² + 4x +1)
=>(2x - 1)² . (2x + 1)²