How do you subtract #5z ^ { 2} - 3z + 7- ( 10z ^ { 2} + 11z - 7)#?

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Answer 1 · 2017-07-25T22:57:56

See a solution process below:

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

#5z^2 - 3z + 7 - 10z^2 - 11z + 7#

Next, group like terms:

#5z^2 - 10z^2 - 3z - 11z + 7 + 7#

Now, combine like terms:

#(5 - 10)z^2 + (-3 - 11)z + (7 + 7)#

#-5z^2 + (-14)z + 14#

#-5z^2 - 14z + 14#