Question

Write the expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2 in simplest form. Then, answer the following questions using complete sentences.

How many terms are in the simplified expression?
How many of the terms in the simplified expression are negative?

Answer 1

combine like terms
assuming those 2s are exponents

-3x^2+2y^2+5xy-2y+5x^2-3y^2
move all x's together all y's together and all xy's together

-3x^2+5x^2+2y^2-3y^2+5xy
combne like terms
2x^2-y^2+5xy

3 terms
1 term is negative