Nabiak27 Nabiak27

26-02-2015
Mathematics

Answered

solve the following by using factoring.
x^2-3x=10

Answer :

hananegussie hananegussie

26-02-2015

It must be x^2-3x+10 Then we can solve by factoring X^2-3x+10

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Panoyin Panoyin

27-02-2015

x² - 3x = 10
x² - 3x - 10 = 0
(x - 5)(x + 2) = 0
x = -(-3) +/- √((-3)² - 4(1)(-10)
   2(1)
x = 3 +/- √(9 + 40)
   2
x = 3 +/- √49
   2
x = 3 +/- 7
   2
x = 3 + 7 x = 3 - 7
   2 2
x = 10 x = -4
   2 2
x = 5 x = -2

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