Question

factorise 4x²+20x+25​

Answer 1

Answer:

(2x+5)(2x+5)

Step-by-step explanation:

hope it helps

Answer 2

Answer:

$(2x+5)(2x+5)$

Step-by-step explanation:

Given-

$4x^2+20x+25$

Here, we have to find 2 numbers whose addition is 20, and their product is 100.

So, that 2 numbers are-

⇒ 10 and 10 (because 10+10=20, and 10x10= 100)

Therefore,

$4x^2+20x+25$

⇒ $4x^2+10x+10x+25$

⇒ $2x(2x+5)+5(2x+5)$

⇒ $(2x+5)(2x+5)$