Question

(3 X + 5 Y) (3 x minus 5 y )=( 9 x square - 25 y square)​

Answer 1

⭐⭐Hey mate⭐⭐

Here so the answer :-

(3x + 5y) (3x - 5y) = (9x² - 25y²)

We know that :-

(a + b)(a - b) = (a - b)²

So, here ,

(3x + 5y) (3x - 5y) = (9x² - 25y²)

(3x - 5y)² = (9x² - 25y²)

(9x² - 25y²) = (9x² - 25y²)

L.H.S. = R.H.S

So,

(3x + 5y) (3x - 5y) = (9x² - 25y²)

...Hence Proved

Hope it will be helpful....

Answer 2

LHS = RHS proved.

Step-by-step explanation:

$The \ given \ equation \ is:\\(3x+5y)(3x-5y)=(9x^{2}-25y^{2} )\\On \ solving \ LHS,\\(3x+5y)(3x-5y)=(9x^{2}-25y^{2} )\\9x^{2}+15xy-15xy-25y^{2}=9x^{2}-25y^{2}\\9x^{2}-25y^{2} =9x^{2}- 25y^{2}\\ Hence,LHS=RHS$

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