find the value of k if 2x2+3x+k=0 has equal roots
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For what value of k will the quadratic equation 2x2+3x+k=0 have real equal roots ... We know that a quadratic equation has real and equal roots if $$D = 0$$. ... Get Instant Solutions, 24x7.
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Given : 2x2+3x+k=0
a=2;b=3;c=k
D=b2-4ac
D=(3)^-4×2×k
D=9-8k
we know that a quadratic equation has real and equal roots .
9-8k=0
-8k= -9
k= 9/8
Therefore; This the solution.
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