Question

factorize the sum
x²-4x-5
​

Answer 1

Step-by-step explanation:

x^2-4x-5

x^2+x-5x-5

x(x+1)-5(x+1)

(x+1)(x-5)

Answer 2

$\leadsto \bf{{x}^{2} - 4x - 5}$

$\leadsto\bf{ {x}^{2} - 5x + x - 5}$

$\leadsto\bf{x(x - 5) + 1(x - 5)}$

$\leadsto \bf{(x + 1)(x - 5)} \green \bigstar$

___________

$\leadsto \bf \purple{How \: to \: factorise?}$

1. At first we have to multiple x² with 5
2. Then we have to take a number from which if we add or subtract the result will come 5x²
3. Then we can take common.
4. And finally the result will be (x + 1) (x - 5).