Q: Factor Completely: 45a^3d-75a^2d^2-30ad^3

A: 45a^3d-75a^2d^2-30ad^3=
=5ad(9a^2-15ad-6d^2)=
=5ad(9a^2-3ad+18ad-6d^2)=
=5ad[3a(3a-d)+6d(3a-d)]=
=5ad(3a-d)(3a+6d)

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Multiply: (y-9)(y+10)
**Weegy:**
(y-9)(y+10)
= y^2 + 10y - 9y - 90
= y^2 + y - 90
**User:** please add: 4x^4-2x^2+1 and 3x^2-3x-4
**Weegy:** (4x^4-2x^2+1)+(3x^2-3x-4) ;
Ans: 4x^4 + x^2 - 3x - 3 (More)

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Updated 6/20/2014 1:46:36 PM

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