what should be added to 3y²-2y+9 to get -3y-7y²+1/2?
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Answered by
3
Answer:
-10y² - y - 17/2
Step-by-step explanation:
3y² - 2y + 9 + x = -3y - 7y² + 1/2
3y² + 7y² - 2y + 3y +9 - 1/2 = -x
10y² + y + 17/2 = -x
-10y² - y - 17/2 = x
Answered by
1
Answer:
Step-by-step explanation:
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