Question

Polynomial Operations...
SIMPLIFY: (4y^2-5y) + (3y-7y^2) - (2y^2+6y-5)

Answer 1

A.)9y^2-8y-5 C.)-3y^2+2y+5
B.)-5y^2-8y+5 D.)5y^2-6y-5

Answer 2

Any ideas?

Answer 3

Not guesses at the answer, but any ideas on how to tackle this problem?

Answer 4

\[(4y ^{2}-5)+(3y-7y ^{2})-(2y ^{2}+6y-5)\]
\[=4y ^{2}-5y+3y-7y ^{2}-2y ^{2}-6y+5\]
\[=4y ^{2}-7y ^{2}-2y ^{2}-5y+3y-6y+5\]
\[=-5y ^{2}-8y+5\]