Question

Add: 4x 2y + 5xy 2 − 7xy and 5xy 2 − 5xy − 4x 2y

Answer 1

Explanation:

4x

2

y,−3xy

2

,−5xy

2

,5x

2

y=4x

2

y+(−3xy

2

)+(−5xy

2

)+5x

2

y

=4x

2

y+5x

2

y−3xy

2

−5xy

2

=9x

2

y−8xy

2

.