Factorise : x^2 - (b - 2)x - 2b - Vidyadip

Question

Factorise : $x^2 - (b - 2)x - 2b$

✓

Answer

$x^2 - (b - 2)x - 2b$
$= x^2 - bx + 2x - 2b$
$= x (x - b) + 2(x - b)$
$= (x - b) (x + 2)$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[3 marks sum]" from Factorisation→Factorisation — all question types→MATHS STD 8 question papers→ICSE Board STD 8 question papers→ICSE Board question paper generator→

Similar questions

Find the amount of bill for the following inter$-$state transaction of goods$/$services: Cost of transaction $= 30,000$; discount $= 30\%$ and $\text{GST}=28\%$.

Find the product :
$-9 \times \frac{7}{18}$

Solve the following equation and also verify your solution: $(x + 2)(x + 3) + (x − 3)(x − 2) − 2x(x + 1) = 0$

Evaluate: $\frac{5}{9}+\frac{-7}{6}$

Evaluate: $\left[\left(\frac{1}{4}\right)^{-3}-\left(\frac{1}{3}\right)^{-3}\right] \div\left(\frac{1}{6}\right)^{-3}$

Evaluate: $\frac{-5}{18}-\frac{-2}{9}$

Find the least number which must be added to $5483$ so that the resulting number is a perfect square.

Find the number of sides in a polygon if the sum of its interior angle is: $900^\circ$

Find the square root of the following correct to two decimal place: $3 \frac{4}{5}$

If $a+b=11$ and $a^2+b^2=61$, find the value of $a b$.