christianduke14 christianduke14

07-09-2016
Mathematics

contestada

What are the roots for 0=3x^2-4x-9

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mpanderla95 mpanderla95

07-09-2016

3x ^2 - 4x - 9 = 0
3x ^ 2 - 4x = 9
X( 3x - 4) = 9

X = 9

3x - 4 = 9
3x - 4 + 4 = 9 + 4
3x = 13
3x/3 = 13/3
X = 13/3.

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