rút gọn(5xy+ 2x^2y - 3)+(4x^2y + 5xy - 1) câu hỏi 6739653 - hoidap247.com

Question

rút gọn(5xy+ 2x^2y - 3)+(4x^2y + 5xy - 1)

Lethuynhung2k10 · Answer

`(5xy + 2x^2y - 3) + (4x^2y + 5xy - 1)`
`= 5xy + 2x^2y - 3 + 4x^2y + 5xy - 1`
`= (5xy + 5xy) + (2x^2y + 4x^2y) - (3 + 1)`
`= 10xy + 6x^2y - 4`

hrosenguyen · Answer

(5xy+ 2x^2y - 3)+(4x^2y + 5xy - 1)=5xy+ 2x^2y - 3+4x^2y + 5xy - 1=2x^2y+4x^2y+5xy+5xy-3-1=6x^2y+10xy-4

rút gọn(5xy+ 2x^2y - 3)+(4x^2y + 5xy - 1)