If a and ß are the roots of the quadratic equation 3x²+Kx+8=0 and al

1.	If a and ß are the roots of the quadratic equation 3x²+Kx+8=0 and alpha beta =. ⅔ then find the value of K.
Answer» Answer: ALPHAbeta = -b/a...(1) but, alphabeta= 2/3...........(2)(GIVEN) -b/a= 2/3......(3).(from (1) and (2)) the eq is 3x2 +kx +8=0 comparing with general formula ax2+bx+c=0 a=3, b=k, c=8 -k/3=2/3.....(from (3)) -3k = 6 k=6/-3 k=-6/3 k= -2 the VALUE of k is -2 hope it helps you

If a and ß are the roots of the quadratic equation 3x²+Kx+8=0 and alpha beta =. ⅔ then find the value of K.

Answer»

Answer:

ALPHA*beta = -b/a...(1)

but, alpha*beta= 2/3...........(2)(GIVEN)

-b/a= 2/3......(3).(from (1) and (2))

the eq is 3x2 +kx +8=0

comparing with general formula ax2+bx+c=0

a=3, b=k, c=8

-k/3=2/3.....(from (3))

-3k = 6

k=6/-3

k=-6/3

k= -2

the VALUE of k is -2

hope it helps you

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If a and ß are the roots of the quadratic equation 3x²+Kx+8=0 and alpha beta =. ⅔ then find the value of K.​

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If a and ß are the roots of the quadratic equation 3x²+Kx+8=0 and alpha beta =. ⅔ then find the value of K.