Find the product of (3x 7y)2.

Hi!

(3x 7y) (3x-7y)

(x 5)^2

(x)^2 2(x)(5) (5)^2

x^2 10 x 25

9x^2-49y^2,6x-14y,2x 10.

(3x-7y)^2

Perfect squares

(a-b)^2= a^2 -2ab b^2

(3x)^2 -2(3x)(7y) (7y)^2

9x^2 42 xy 49y^2

9x^2-49y^2,6x-14y,2x 10.

Perfect squares property

(a b)^2 = a^2 2ab b^2

(x)^2 2(x)(5) (5)^2

x^2 10 x 25

Perfect squares property

(a b)^2 = a^2 2ab b^2

Hope this helps!

This post is last updated on hrtanswers.com at Date : 1st of September – 2022