Question
Factorise:
$x^2-x(a+2 b)+2 a b$
$x^2-x(a+2 b)+2 a b$
✓
Answer
$x^2-x(a+2 b)+2 a b$
$=x^2-x a-2 b x+2 a b$
$= x(x - a) - 2bx + 2ab$
$ = x(x - a) - 2b(x - a) $
$= (x - a)(x - 2b)$
$=x^2-x a-2 b x+2 a b$
$= x(x - a) - 2bx + 2ab$
$ = x(x - a) - 2b(x - a) $
$= (x - a)(x - 2b)$
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
Solve:
$ 3 a^5-48 a^3 $
→$ 3 a^5-48 a^3 $
Write the following numbers in usual form:
$4.129 × 10^{-3}$
→$4.129 × 10^{-3}$
How many numbers lie between the squares of the following numbers?
(i) 16 and 17 (ii) 99 and 100
(i) 16 and 17 (ii) 99 and 100
Diameter of cylinder $A$ is $7 \ cm$, and the height is $14 \ cm$. Diameter of cylinder $B$ is $14 \ cm$ and height is $7 \ cm$. Without doing any calculations can you suggest whose volume is greater? Verify it by finding the volume of both the cylinders. Check whether the cylinder with greater volume also has greater surface area?
→Find the square root in decimal from: $0.7225$
→Top surface of a raised platform is in the shape of a regular octagon as shown in the figure. Find the area of the octagonal surface.
TIPS Firstly, divide the given regular octagonal surface into two congruent trapeziums and one rectangle and then add their areas to get required area of octagonal surface.
TIPS Firstly, divide the given regular octagonal surface into two congruent trapeziums and one rectangle and then add their areas to get required area of octagonal surface.
By what number should we multiply $\frac{-8}{13}$ so that the product may be $24$?
→Verify the property $x + y = y + x$ of rational numbers by taking. $\text{x}=\frac{-3}{7},\text{y}=\frac{20}{21}$
→How many edges are there in a: Square pyramid?
Express $\frac{-3}{5}$ as a rational number with denominator. $20$
→