Question

5. 5x² – 7y² please give me a answer​

Answer 1

Hey friend !

Here's your answer

5x² - 7y² is in the form of a²-b²

We know that a²-b² = (a+b)(a-b)

Here a = 5x and b= 7y

Therefore ,

(a+b)(a-b)

= (5x+7y)(5x-7y)

which gives rise to 5x² - 7y²

OR

5x² – 7y²

=(√5x)²- (√7y)²

=(√5x+√7y) (√5x-√7y)