3 years ago

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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