If one root of a quadratic equation ax2+bx+c=0 is 0, and the value of the coefficients a,b are 8,7 respectively, then the other root is:
A
87
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B
−78
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C
−87
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D
78
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Solution
The correct option is B−78 Given equation has one root as 0.
For ax2+bx+c=0 to have zero as a root, ⇒ the constant term, c=0
If c=0 then the roots are 0 and −ba ⇒ Hence the other root is −78