Advertisements
Advertisements
प्रश्न
The zeroes of the polynomial p(x) = 25x2 – 49 are ______.
विकल्प
`49/25, 49/25`
`-49/25, 49/25`
`7/5, -7/5`
`7/5, 7/5`
Advertisements
उत्तर
The zeroes of the polynomial p(x) = 25x2 – 49 are `underlinebb(7/5, -7/5)`.
Explanation:
p(x) = 25x2 = 49
= (5x – 7)(5x + 7)
∴ x = `7/5` and `(-7)/5`
APPEARS IN
संबंधित प्रश्न
If α and β are the zeros of the quadratic polynomial f(t) = t2 − 4t + 3, find the value of α4β3 + α3β4.
If α and β are the zeros of a quadratic polynomial such that α + β = 24 and α − β = 8, find a quadratic polynomial having α and β as its zeros.
If the zeros of the polynomial f(x) = 2x3 − 15x2 + 37x − 30 are in A.P., find them.
Find the quadratic polynomial, sum of whose zeroes is 8 and their product is 12. Hence, find the zeroes of the polynomial.
If f(x) = `x^4– 5x + 6" is divided by g(x) "= 2 – x2`
By actual division, show that x2 – 3 is a factor of` 2x^4 + 3x^3 – 2x^2 – 9x – 12.`
If α, β, γ are the zeros of the polynomial f(x) = ax3 + bx2 + cx + d, then α2 + β2 + γ2 =
What should be subtracted to the polynomial x2 − 16x + 30, so that 15 is the zero of the resulting polynomial?
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials:
`4x^2 + 5sqrt(2)x - 3`
Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials:
`7y^2 - 11/3 y - 2/3`
