Using the quadratic equation to solve 3x 2 + 11x - 4 = 0, the value of b 2 - 4ac is

Using the quadratic equation to solve 3x 2 + 11x - 4 = 0, the value of b 2 - 4ac is


 

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1 Answer

3x^2 +11x -4=0

a=3, b=11, c=-4

b^2=11^2=121

-4ac=-4*3*(-4)=+4*4*3=48

b^2 -4ac=121+48=169

then yu take square root(169)=13
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