Multiply
(2x-3y)by(2x+3y)
Answers
Answered by
20
=>(2x-3y)(2x+3y)
We know that (a-b)(a+b)=a²-b²
=>(2x)²-(3y)²
=>4x²-9y²
Or
(2x-3y)(2x+3y)
=>2x(2x+3y)-3y(2x+3y)
=>4x²+6xy-6xy-9y²
=>4x²-9y²
Similar questions