niyaallure
niyaallure niyaallure
  • 10-04-2020
  • Mathematics
contestada

What are the solutions of
x2 +6x-6 = 10?

X=-11 or x=1
X=-11 or x=-1
X=-8 or X=-2
X=-8 or X= 2

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 10-04-2020

Answer:

x=-8          x=2

Step-by-step explanation:

x^2 +6x-6 = 10

Subtract 10 from each side

x^2 +6x-6-10 = 10-10

x^2 +6x-16 = 0

Factor

What 2 numbers multiply to -16 and add to +6

8*-2 = 16

8-2 =6

(x+8) (x-2) =0

Using the zero product property

x+8 = 0    x-2 =0

x=-8          x=2

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