Question
Factorize: $4 x^2-25$
✓
Answer
$4 x^2-25$
$=(2 x)^2-(5)^2$
$=(2 x+5)(2 x-5)$
$=(2 x)^2-(5)^2$
$=(2 x+5)(2 x-5)$
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
Points A, B, C are given below. Check, with a stretched thread, whether the three points are collinear or not. If they are collinear, write which one of them is between the other two.
State in which quadrant or on which axis do the following points lie : E(37, 35)
Simplify : $7 \sqrt{3}+29 \sqrt{3}$
→Express the following decimals in the form $\frac{\text{p}}{\text{q}}:$
1.0001
→1.0001
Factorise:
$81-16 x^2$
→$81-16 x^2$
Check whether the following numbers are in continued proportion: $9,12,16$
→Classify the following polynomials as linear, quadratic, cubic and biquadratic polynomials: $2 x+x^2$
→Write the supplement of the following angles:
54°
54°
Convert the following ratios into percentages : $\frac{7}{10}$
→Write:
The cofficient of $x^2$ in $2 x-3+x^3$.
→The cofficient of $x^2$ in $2 x-3+x^3$.