Question

if 3 is one root of quadratic equation 5 x square + kx + 3 is equal to zero then K is equal to minus 3 upon 5 state whether the sentence is true or false​

Answer 1

If 3 is one root of the quadratic equation then it satisfies the equation

5x2 + kx + 3 = 0

5*9 + 3k +3 = 0

45 + 3k + 3 = 0

48 + 3k. = 0

3k. = -48

k. = - 16

Hence the given statement for the value of k is false

Hope it helps you

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Answer 2

Answer:

5×2+kx +3=0

5*9+3k+3=0

45+3k+3=0

48+3k=0

3k=-48

k=-16