estrellar01547 estrellar01547

28-04-2020
Mathematics

contestada

HELLPPPPPPPP I NEED THIS FOR A TESTTTTT
What values of x make the equation true 2x^2+5-17=x^2+7 ?

a. x^2-6= 91

b.x^2(x-6)= 91

c. x(x+6) = 91

d.x(x-6)= 91

Respuesta :

mehronaakhmodova2006 mehronaakhmodova2006

28-04-2020

Answer:

0 and 6

Step-by-step explanation:

2x²-x²=12+7

x²=19

x²-19=0

x(x-6)=0

x=0. or. x-6=0

x=6

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