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Taz
13 June, 14:41
How do you solve x^2+4x-5=0
+5
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Kaitlynn
13 June, 18:09
0
Try this option:
1. root1*root2=-5; root1+root2=-4.
2. root1=-5; root2=1.
answer:1; -5.
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Yuliana Hudson
13 June, 18:36
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Actually the answer is (-1,5)
x^2 - 4x - 5 = 0
x^2 - 4x = 5
x^2 - 4x + 4 = 5 + 4
(x - 2) ^2 = 9
x - 2 = ± 3
x = 2 + 3 and x = 2 - 3
x = 5 and x = - 1
{-1, 5}
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