Advertisements
Advertisements
प्रश्न
The zero of the polynomial 2x + 5 is
विकल्प
`5/2`
`-5/2`
`2/5`
`-2/5`
Advertisements
उत्तर
`-5/2`
Explanation;
Hint:
2x + 5 = 0
⇒ 2x = −5
⇒ x = `-5/2`
APPEARS IN
संबंधित प्रश्न
Find p(0), p(1) and p(2) for the following polynomial:-
p(t) = 2 + t + 2t2 – t3
Find p(0), p(1) and p(2) for the following polynomial:-
p(x) = x3
Verify whether the following zeroes of the polynomial, indicated against them.
`p(x) = 3x + 1, x = -1/3`
Verify whether the following zeroes of the polynomial, indicated against them.
p(x) = (x + 1) (x – 2), x = – 1, 2
Verify whether the following zeroes of the polynomial, indicated against them.
p(x) = 2x + 1, `x = 1/2`
Find the zero of the polynomial in the following case:
p(x) = x + 5
Find the zero of the polynomial in the following case:
p(x) = 2x + 5
Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:
`f ( x ) = 3x +1, x = - 1/3`
Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:
`f ( x) = x^2and x = 0`
Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:
`f (x) = 2x +1, x = 1/2`
Find the zero of the polynomial of the following:
p(x) = 2x + 5
Find the zero of the polynomial in the following:
h(x) = ax + b, a ≠ 0, a, b ∈ R
Verify whether the following are zeros of the polynomial indicated against them, or not
p(x) = 2x − 1, x = `1/2`
Find the number of zeros of the following polynomial represented by their graph

Zeros of (2 – 3x) is ___________
If `p(x) = x^2 - 2sqrt(2)x + 1`, then `p(2sqrt(2))` is equal to ______.
If p(x) = x + 3, then p(x) + p(–x) is equal to ______.
One of the zeroes of the polynomial 2x2 + 7x – 4 is ______.
A polynomial cannot have more than one zero
Find p(0), p(1), p(–2) for the following polynomial:
p(x) = 10x – 4x2 – 3
`(-4)/5` is a zero of 4 – 5y
0 and 2 are the zeroes of t2 – 2t
–3 is a zero of y2 + y – 6
Find the zeroes of the polynomial in the following:
g(x) = 3 – 6x
If a, b, c are all non-zero and a + b + c = 0, prove that `a^2/(bc) + b^2/(ca) + c^2/(ab) = 3`.
