0
3X^2 - 5X - 2 = 0
needed: the quadratic equation
-b +/- sqrt(b^2 - 4ac)/2a
a = 3
b = -5
c = -2
-(-5) +/- sqrt[(-5)^2 - 4(3)(-2)]/2(3)
5 +/- sqrt(25 + 24)/6
5 +/- sqrt(49)/6
5 +/- 7/6 ( that divisor line means 5 +/- 7; then divide by 6 )
X = 2
X = - 1/3
check the easy answer
3(2)^2 - 5(2) - 2 = 0
12 - 10 - 2 = 0
0 = 0
checks ( you check the fraction )
Wiki User
∙ 13y ago
Wiki User
∙ 8y ago(x - the square root of 5)(x + the square root of 5)
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