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Factorise 4x ^(2) + 9y ^(2) + 25 z ^(2) ...

Factorise `4x ^(2) + 9y ^(2) + 25 z ^(2) - 12 xy - 30 yz + 20 zx`

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The correct Answer is:
`(2x - 3y + 5z) (2x - 3y + 5z)`
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Factories (i) 25 x ^(2) + 16 y ^(2) + 4z ^(2) - 40 xy + 16 yz - 20xz (ii) 9a ^(2) + 4b ^(2) + 16 c ^(2) + 12 ab - 16 bc - 24 ca

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The curves 4x^(2) + 9y^(2) = 72 and x^(2) - y^(2) = 5 at (3,2)

Factorise : - 12x^(2)-7x+1

Factorise : - x^(3)+13x^(2)+32x+20