petahpham petahpham

18-09-2017
Mathematics

contestada

BRAINLIEST OFFERED!
Solve and Show work!! :
2x²-1=x²+4x+11

Respuesta :

kphung76127 kphung76127

18-09-2017

First we want to put this into standard form.
Subtract (x^2+4x+11) from both sides
x^2-4x-12

Then factor the trinomial
(x-6)(x+2)

Use the zero product property to find roots
(x-6)=0
x=6

(x+2)=0
x=-2

Final answers: x=-2, x=6

Answer Link

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