Question

(75)² by using idienties​

Answer 1

Step-by-step explanation:

75 = 70+5

(a+b)^2 = a2+ b2 + 2ab

(70+5)2 = 4900+25+700 = 5625

Answer 2

(80 - 5)²

(80)² + (5)² -2×80×5

6400+25-800

5625

please mark my answer brainliest..