7. If the sum of the zeroes of the polynomial P(x)=2x³-3 kx²+ 4x -5 is 6, then Find the value

of ‘k’

# 7. If the sum of the zeroes of the polynomial P(x)=2x³-3 kx²+ 4x -5 is 6, then Find the value

### 1 thought on “7. If the sum of the zeroes of the polynomial P(x)=2x³-3 kx²+ 4x -5 is 6, then Find the value<br />of ‘k’”

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answer :

k=4

explanation :

sum of zeroes = -b/a( b= coefficient of x^2, a=coefficent of x^3)

given sum of zeroes=6

6=-(-3k)/2

6×2=3k

12=3k

12/3=k

4=k