gmoneyman16635
gmoneyman16635
15-04-2016
Mathematics
contestada
What is 5x^2+4x=80 times x^2-5x-24=0
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Cotsios1016
Cotsios1016
15-04-2016
(5x²+4x-80)(x²-5x-24)=5x²(x²-5x-24)+4x(x²-5x-24)-80(x²-5x-24)
{distributive property of multiplication}
=5x^4
-25x³
-120x²
+4x³
-20x²-96x-80x²+400x+1920
=5x^4-21x³-220x²+304x+1920
This is the answer.
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