is 1/2 is a root of the quadratic equation 4x^2- 6K X + k + 7=0 , the value of k is
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4
Step-by-step explanation:
As 1/2 is a root of given equation so if we put the value of X which is 1/2 , the value of the equation will be 0 so,
4(1/2)^2 - (6×1/2)k + k +7=0
●(4×1/4) - 3k + k +7=0
●1- 2k +7 = 0
●8 - 2k= 0
●8=2k
●k=4
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