SarahBeth21id
SarahBeth21id
Mathematics
Answered
If 2x²+6x-4=0, how do you factor it and what is x?
Sagot :
Panoyinid
Panoyinid
2x² + 6x - 4 = 0
2(x²) + 2(3x) - 2(2) = 0
2(x² + 3x - 2)
=
0
2 2
x² + 3x - 2 = 0
x =
-(3) +/- √((3)² - 4(1)(-2))
2(1)
x =
-3 +/- √(9 + 8)
2
x =
-3 +/- √(17)
2
x = -1.5
+
0.5√(17)
x = -1.5 + 0.5√(17) U x = -1.5 - 0.5√(17)
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