Question

Find the product using suitable identity

i) (3x+2y) (3x -4y)​

Answer 1

Answer:

Step-by-step explanation:

(3x+2y) (3x -4y)​

= (3x+2y) * (3x -4y)​

= (3x * 3x) + (2y * (-4y)

= 9x + (-8y)

= 9x - 8y Is The Product

Answer 2

Answer:

9x² - 6xy - 8y

Step-by-step explanation:

(3x+2y) (3x-4y)

We can write as (3x+2y) [3x + (-4y)]

Using identity: (x+a) (x+b) = x²+(a+b)x + ab

here, x = 3x , a = 2y , b = -4y

= (3x)² + [2y + (-4y)] × 3x + [2y × (-4y)]

= 9x² + (-2y) × 3x + (-8y)

= 9x² - 6xy - 8y

Hope this helps you