Question

factorise 9 x square minus 16 y square

Answer 1

= 9x² - 16y²

= (3x)² - (4y)²

[a² - b² = (a + b) (a - b) ]

= (3x + 4y) (3x - 4y)

hope it helps

Answer 2

Answer:

The factorization is

$9x^2-16y^2=(3x-4y)(3x+4y)$

Step-by-step explanation:

Given the equation

$9x^2-16y^2$

we have to factorize the above equation.

$9x^2-16y^2=(3x)^2-(4y)^2$

By the identity

$a^2-b^2=(a-b)(a+b)$

Put a=3x and b=4y

$(3x)^2-(4y)^2=(3x-4y)(3x+4y)$

which is required solution.