Write the expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2 in simplest form. then, answer the following questions using complete sentences. a)how many terms are in the simplified expression? b) how many of the terms in the simplified expression are negative?

Simplify the following:

-3 x^2 + 2 y^2 + 5 x y - 2 y + 5 x^2 - 3 y^2

Grouping like terms, -3 x^2 + 2 y^2 + 5 x y - 2 y + 5 x^2 - 3 y^2 = (2 y^2 - 3 y^2) + 5 x y - 2 y + (5 x^2 - 3 x^2):

(2 y^2 - 3 y^2) + 5 x y - 2 y + (5 x^2 - 3 x^2)

2 y^2 - 3 y^2 = -y^2:

-y^2 + 5 x y - 2 y + (5 x^2 - 3 x^2)

5 x^2 - 3 x^2 = 2 x^2:

-y^2 + 5 x y - 2 y + 2 x^2

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

3.how is solving radical equations different than solving linear equations?

step-by-step explanation: