Question

I can't get this problem which is :
(x+5)^2 - (x)^2

I can't remember the rule

Answer 1

Method 1

(x+5)^2-x^2 = x^2+25+10x - x^2

= 25+10x

Method 2

let a=(x+5) and b =x then use identity a^2-b^2=(a+b)(a-b)

hence (x+5+x) (x+5-x)

2x+5(5)= 10x+25

use whatever you find easy don't try to learn it just go with the flow hope it helps plss mark me Brainliest

Answer 2

(A2 - B2) = (A+B)(A-B)

A = (x+5)
B = (x)

(X + 5 + X) (X + 5 - X)

(2X + 5) (5)

(10x + 25)

I hope it will help you