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How do you evaluate #(-3y^2 - 7y - 2) - (5y^2 + 4y -5)#?

Answer 1

Genesis Allen

See a solution process below:

First, remove all of the terms from parenthesis. Be careful to handle the signs of each individual term correctly:

#-3y^2 - 7y - 2 - 5y^2 - 4y + 5#

Next, group like terms:

#-3y^2 - 5y^2 - 7y - 4y - 2 + 5#

Now, combine like terms:

#(-3 - 5)y^2 + (-7 - 4)y + (-2 + 5)#

#-8y^2 + (-11)y + 3#

#-8y^2 - 11y + 3#

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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