Advertisements
Advertisements
Question
Zero of the polynomial p(x) = 2x + 5 is ______.
Options
`-2/5`
`-5/2`
`2/5`
`5/2`
Advertisements
Solution
Zero of the polynomial p(x) = 2x + 5 is `underlinebb(-5/2)`.
Explanation:
Zero of the polynomial p(x) = 2x + 5 is p(x) = 0.
So, 2x + 5 = 0
2x = –5
x = `-5/2`
APPEARS IN
RELATED QUESTIONS
Find p(0), p(1) and p(2) for the following polynomial:-
p(t) = 2 + t + 2t2 – t3
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) = x2, x = 0
Verify whether the following zeroes of the polynomial, indicated against them.
p(x) = 3x2 – 1, x = `-1/sqrt3,2/sqrt3`
If `x = −1/2` is a zero of the polynomial `p(x)=8x^3-ax^2 -+2` find the value of a.
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) = (x + 3) (x – 4), x = −3, x = 4
Zero of a polynomial is always 0
`(-4)/5` is a zero of 4 – 5y
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`.
