Question

Q-2 Simplify the following
(a)(3x+2y)²-(3x-2y)²
(b)(px+qy)(ax-by)​

Answer 1

Answer:

(a)(3x+2y)²-(3x-2y)²

[ (3x)^2 + (2y)^2 + 2×3x×2y ] - [ (3x)^2 + (2y)^2 -

2×3x×2y ]

(9x^2 + 4y^2 + 12xy) - (9x^2 + 4y^2 - 12xy)

9x^2 + 4y^2 + 12xy - 9x^2 - 4y^2 + 12xy

24xy

(b)(px+qy)(ax-by)

px(ax-by) + qy(ax-by)

pax^2 - pxby + qyax - qby^2

please mark me as Brainliest