kwhite746517 kwhite746517
  • 26-04-2017
  • Mathematics
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What does X to the second power minus 14x plus 49 equals

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Dabrainy1
Dabrainy1 Dabrainy1
  • 26-04-2017
X= 3.5 because 14 times 3.5= 49?


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choco4
choco4 choco4
  • 26-04-2017
x^2 - 14x + 49 

2 numbers that multiplied equal 49
2 number that added equal -14

-7 times -7 = 49
-7 plus -7 = -14

(x-7) (x-7)

x=7
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