Question
Write the correct answer in the following:
Zero of the polynomial p(x) = 2x + 5 is.
Zero of the polynomial p(x) = 2x + 5 is.
✓
Answer
- $-\frac{5}{2}$
Solution:
Finding a zero of p(x) is the same as solving an equation p(x) = 0.
Now, p(x) = 0 ⇒ 2x + 5 = 0,
2x = -5
Which give us $\text{x}=-\frac{5}{2}.$
Therefore, $-\frac{5}{2}$ is the zero of the polynomial.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The sides of a parallelogram are 100m each and the length of the longest diagonal is 160m. The area of a parallelogram is:
Into how many chapters was the famous treatise, 'The Elements' divided by Euclid?
- 13
- 12
- 11
- 9
The chord of a circle is equal to its radius. The angle subtended by this chord at the minor arc of the circle is:
$(x + 1)$ is a factor of $x^n + 1$ only if:
→If $x - 3$ is a factor of $x^2 - ax - 15,$ then $a =$
→The value of $\Big\{\big(23+2^2\big)^{\frac{2}{3}}+\big(140-19\big)^{\frac{1}{2}}\Big\}^2,$ is:
→→- 196
- 289
- 324
- 400
Volume of hollow cylinder of height h, with outer radius R and inner radius r.
The expanded form of $(x + y - z)^2$ is:
→An exterior angle of a triangle is equal to 100º and two interrior opposite angles are equal. Each of these angles is equal to: