Advertisements
Advertisements
प्रश्न
If one zero of the quadratic polynomial `kx^2 + 3x + k is 2`, then find the value of k.
उत्तर
Given: x = 2 is one zero of the quadratic polynomial `kx^2 + 3x + k`
Therefore, it will satisfy the above polynomial.
Now, we have
`k(2)^2 + 3(2) + k = 0`
⇒ 4k + 6 + k = 0
⇒ 5k + 6 = 0
⇒ k=`-6/5`
APPEARS IN
संबंधित प्रश्न
One zero of the polynomial `3x^3+16x^2 +15x-18 is 2/3` . Find the other zeros of the polynomial.
Find all the zeroes of `(2x^4 – 3x^3 – 5x2 + 9x – 3)`, it is being given that two of its zeroes are `sqrt3 and –sqrt3`.
If one zero of the polynomial `x^2-4x+1 is (2+sqrt3)` , write the other zero.
If 1is a zero of the quadratic polynomial `ax^2 – 3(a – 1)x – 1`is 1, then find the value of a.
If the sum of the zeros of the quadratic polynomial `kx^2-3x + 5` is 1 write the value of k..
If x3 + 1 is divided by x2 + 5, then the possible degree of quotient is ______.
If p(x) is a polynomial of at least degree one and p(k) = 0, then k is known as ______.
If one of the zeroes of the quadratic polynomial (k -1)x² + kx + 1 the value of k is ______.
If the zeroes of the quadratic polynomial ax2 + bx + c, c ≠ 0 are equal, then ______.
The zeroes of the quadratic polynomial 16x2 – 9 are ______.
