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
Answer Link
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
Answer Link
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