factorise using formula when the given expression is a perfect square 4x^2+20x+25
Answers
Answered by
0
Hi
4x²+20x+25
(2x)²+20x+5²
Using identity a²+2ab+b²=(a+b)²
2x²+2(2x)(5)+5²= (2x+5)²
Final answer=(2x+5)²
Hope it helps you
Similar questions
Science,
5 months ago
Science,
5 months ago
Accountancy,
5 months ago
Environmental Sciences,
10 months ago
Math,
10 months ago
Social Sciences,
1 year ago
Biology,
1 year ago