Question

Pls solve it with formal and steps I will make the brainlist

Answer 1

Answer:

1. 36x²+60xy+25y²

2.9p²+72pq+144q²

3.64m²-144mn+81n²

4.121a²-286ab+169b²

Step-by-step explanation:

1. (6x+5y)²

By using (a+b)²= a²+2(ab)+b²

(6x)²+2(6x×5y)+(5y)²

36x²+60xy+25y²

2.(3p+12q)

by using (a+b)²=a²+2(ab)+b²

(3p)²+2(3p×12q)+(12q)²

9q²+72pq+144q²

do the 3rd and 4th sums by applying this property

(a-b)²= a²-2ab+b²

Now the 3rd and 4th sum will have minus between them see the property carefully ..