Question

WILL GIVE MEDAL AND FAN!!!

4. Subtract and simplify: (–y2 – 3y – 5) – (–3y2 – 7y + 4)

a. 2y2 – 10y + 4

b. 2y2 + 4y – 9

c. –2y2 – 10y – 1

d. 2y2 – 7y – 9

Answer 1

HI!!

Answer 2

remove the parentheses in the second part by distributing the minus sign
then, as the math teachers say, combine like terms

Answer 3

keep switch change so you keep the first part ( -y^2 - 3y -5) flip the minus sign to a positive sign and change the last part to (3y^2 + 7y -4)
in the end the new equation would be
(-y^2 - 3y -5) + (3y^2 +7y -4)

Answer 4

so would it be B? @misty1212 @kisfa

Answer 5

yes