pinkster104 pinkster104

23-03-2016
Mathematics

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What are the roots of the quadratic equation 0= 8x^2+14x ?

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RASEA23 RASEA23

23-03-2016

8x^2+14x=0
Take 2x as a common factor:
2x(4x+7)=0
Take 2 cases:
2x=0 or 4x+7=0
2x=0 x=0
4x+7=0 4x=-7 x=-7/4

The roots are 0 or -7/4.

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