Question

Simplify (4x+5y)(2x-3y)+3xy

Answer 1

`8x^2+xy-15y^2`

Explanation:

`(4x+5y)(2x-3y)+3xy\\\\=(4x)(2x)+(4x)(-3y)+(5y)(2x)+(5y)(-3y)+3xy\\\\=8x^2-12xy+10xy-15y^2+3xy\\\\=8x^2+xy-15y^2`

Answer 2

Answer: 8x^2 + xy - 15y^2

Explanation:

first do the FOIL method than add 3xy to the equation after