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if x equal to minus1/2,is a …

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if x equal to minus1/2,is a solution of quadratic equation 3x square plus 2kx minus3 equal to 0 find the value of k
  • 2 answers

Suraj Meena 6 years, 9 months ago

hi

Deepika Praveen 6 years, 9 months ago

3x2+2Kx-3=0
3(-1/2) +2k(-1/2)-3=0
-3/2-2k/2-3=0
3-4k-12/4=0
3-12-4k=0
3-12=4k
-9=4k
k=-9/4

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