How do you subtract #7x-9# from #2x^2-11#?

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Answer 1 · 2017-06-15T02:37:01

See a solution process below:

We can write this word problem as:

#(2x^2 - 11) - (7x - 9)#

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

#2x^2 - 11 - 7x + 9#

Next, group like terms:

#2x^2 - 7x - 11 + 9#

Now, combine like terms:

#2x^2 - 7x + (-11 + 9)#

#2x^2 - 7x + (-2)#

#2x^2 - 7x - 2#