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Mathematics
Madeleine Li
14 August, 02:37
Y2 + 4y + 7
(-) 4y² + 3y - 2
+2
Answers (
1
)
Danielle Wiggins
14 August, 05:05
0
If the equation was intended to be written as:
(y² + 4y + 7) - (4y² + 3y - 2)
Then the answer is:
-3y² + y + 9
Step-by-step explanation:
Original equation:
(y² + 4y + 7) - (4y² + 3y - 2)
The minus sign must be distributed through the terms within the parenthesis. Thus - (4y² + 3y - 2) becomes - 4y² - 3y + 2 and the parenthesis is no longer needed.
Remove bother parenthesis after distributing the negative sign:
y² + 4y + 7 - 4y² - 3y + 2
Gather like terms, that is put terms together than can be combined:
y² - 4y² + 4y - 3y + 7 + 2
Simplify by combining like terms:
-3y² + y + 9
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