emeron1001
emeron1001
30-03-2017
Mathematics
contestada
factoring quadratics
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lisee7
lisee7
30-03-2017
You need to bring the right to the left
2X^2-9x-x^2+20=0
So you combine and get
X^2-9x+20
(X-4)(X-5)
Cuz -4 times -5 =20 and -4+-5=-9
So solve X-4=0. X-5=0
X=4. X=5
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