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4 votes
Subtract and simplify.
(-y^2-3y-5)-(-3y^2-7y+4)

User Saggex
by
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2 Answers

6 votes

Explanation:


( - {y}^(2) - 3y - 5) - ( - 3 {y}^(2) - 7y + 4) \\ \\ = - {y}^(2) - 3y - 5 + 3 {y}^(2) + 7y - 4 \\ \\ = 3 {y}^(2) - {y}^(2) + 7y - 3y - 5 - 4 \\ \\ = 2 {y}^(2) + 4y - 9

User Farrokh
by
3.6k points
5 votes

(-y² - 3y - 5) - (-3y² - 7y + 4)

= -y² - 3y - 5 + 3y² + 7y - 4

= (-1 + 3)y² + (-3 + 7)y + (-5 - 4)

= 2y² + 4y - 9

User Wolfog
by
3.2k points