Advertisements
Advertisements
प्रश्न
When x = −1, what is the value of the polynomial 2x3 + 2x?
विकल्प
4
2
−2
−4
उत्तर
−4
Explanation:
Let p(x) = 2x3 + 2x
∴ p(−1) = 2 × (−1)3 + 2 × (−1)
= 2 × (−1) − 2
= − 2 − 2
= −4
Thus, the value of the polynomial when x = −1 is −4.
APPEARS IN
संबंधित प्रश्न
If `p(y) =y^2 - 3sqrt2y + 1` then find `p (3sqrt 2)`.
Find the value of the polynomial 2x - 2x3 + 7 using given values for x.
x = -1
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(y) = y2 − 2y + 5
For the following polynomial, find p(1), p(0) and p(-2).
p(x) = x4 − 2x2 − x
For the polynomial mx2 − 2x + 3 if p(−1) = 7 then find m.
`p(x) = x^2 - 7 sqrt 7 x + 3 "then " p(7 sqrt 7) = ?`
If x - 1 is a factor of the polynomial `3x^2 + mx ` then find the value of m.
Find the value of the polynomial f(y) = 6y – 3y2 + 3 at y = 1
The sum of the polynomials p(x) = x3 – x2 – 2, q(x) = x2 – 3x + 1
