Mileykins1
Mileykins1 Mileykins1
  • 09-12-2016
  • Mathematics
contestada

X^2-8x+16=1
What is this answer

Respuesta :

blazingblazed
blazingblazed blazingblazed
  • 09-12-2016
Because it's a square root to the X, there's going to be 2 answers. After solving it I got x = 3,5
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 09-12-2016
mmiinus 1 from both sides to get it equal to zero
x^2-8x+15=0
factor
what 2 numbers multiply to get 15 and add to get -8
-5 and -3
(x-5)(x-3)=0
set each to zero
x-5=0
x=5

x-3=0
x=3


x=3 and 5

x=4 is the answer
Answer Link

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