Question

please help very urgent<br /><br />Factories. 4(x+y)²–28(x²–y²)+49(x–y)²

Answer 1

Hope it helps you Please mark me as the brainliest

Answer 2

4(x+y)² - 28(x+y)(x-y) + 49(x-y)²
=> {2(x+y)}² - 2 × 2(x+y) × 7(x-y) + {7(x-y)}²
=> {2(x+y) - 7(x-y)}²
=>{2x+2y- 7x+7y}²
=>{9y-5x}² [THIS IS YOUR REQUIRED ANSWER ][PLEASE MARK AS THE BRAINLIEST