Question

100x² + 180x + 81 Solve this PLZ

Answer 1

Answer:

$\huge\boxed{\sf (10x+9)^2}$

Step-by-step explanation:

$\sf 100x^2 + 180x+81\\\\= (10x)^2 + 2(10x)(9)+ (9)^2\\\\Using \ Formula \ a^2 +2ab+b^2 = (a+b)^2\\\\= (10x+9)^2\\\\\rule[225]{225}{2}$

Hope this helped!

~AH1807

Answer 2

Answer:

$(10x + 9 {)}^{2}$

Step-by-step explanation:

1) Rewrite it in the form a² + 2ab + b², where a = 10x and b = 9.

$(10x) ^{2} + 2(10x)(9) + {9}^{2}$

2) Use square sum: ( a + b )² = a² + 2ab + b².

$(10x + 9 {)}^{2}$

Hence, the answer is (10x + 9)².