jackholcomb66p30l2j jackholcomb66p30l2j

08-06-2018
Mathematics

contestada

I need to factor 2x squared plus 6X minus 80

Respuesta :

hienh4517 hienh4517

08-06-2018

2x*2 + 6x + 80

First we have to use distribution property

2(x*2 + 3x + 40)=0
Divide 2 to both sides

X*2 + 3x + 40=0

Multiply -1
-x*2 -3x-40=0
Add two numbers to get 3x
Multiply same two numbers that you add to get 40x*2

Add
-8x+5x= -3x

Multiply
-8x . 5x= -40x*2

-x*2-8x+5x-40

(X*2-8x) + (5x-40)

X(x-8)+ 5(X-8)

Common factor

(X-8)(x+5)

This would help you!

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