Advertisements
Advertisements
प्रश्न
If x - 1 is a factor of the polynomial `3x^2 + mx ` then find the value of m.
विकल्प
2
-2
-3
3
उत्तर
-3
Explanation:
Let p(x) = 3x2 + mx.
(x − 1) is a factor of p(x).
∴ p(1) = 0
⇒ 3 × (1)2 + m × 1 = 0
⇒ 3 + m = 0
⇒ m = −3
APPEARS IN
संबंधित प्रश्न
If `p(m) = m^3 + 2m^2 - m + 10` then `p(a) + p(-a) =` ?
If p(y) = 2y3 − 6y2 − 5y + 7 then find p(2).
Find the value of the polynomial 2x − 2x3 + 7 using given values for x.
x = 3
Find the value of the polynomial 2x − 2x3 + 7 using given values for x.
x = 0
For the following polynomial, find p(1), p(0) and p(-2).
`p(x) = x^3`
If p(x) = 2 + 5x then p(2) + p(−2) − p(1).
If `p(x) = 2x^2 - 5sqrt 3 x + 5` then `p(5 sqrt 3)`.
For which the value of m, x + 3 is the factor of the polynomial x3 − 2mx + 21?
Find the value of the polynomial f(y) = 6y – 3y2 + 3 at y = 1
Find the value of the polynomial f(y) = 6y – 3y2 + 3 at y = 0
