matthewdavis947 matthewdavis947

07-02-2020
Mathematics

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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 :

Аноним Аноним

07-02-2020

Answer:

The last one

Step-by-step explanation:

so first set 1 side eualt to zero by minusing 10 from both sides

x^2+6x-16=0

facotr

what 2 numbers multiply to -16 and add to 6?

-2 and 8

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

set each to zero

x-2=0

x=2

x+8=0

x=-8

x=-8 or 2

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