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Phantasy [73]
3 years ago
11

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

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
7 0

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

<em>combine like terms</em>

=(y^2+3y^2)+(-7y-3y)+(-5+4)=\boxed{4y^2-10y-1}

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|2x+4| > 8 breaks down into two inequalities: 2x+4 > 8 or 2x+4 < -8

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Explanation:

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The image below shows the graph of the line.

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