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Question 1 of 4
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When simplifying expressions, like terms can be combined or operated on.
Since all the terms in the expression have the variable x, they are all like terms.
This means we can directly add and subtract them.
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9x +3x −5x |
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= |
(9+3−5)x |
Solve the constants |
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= |
7x |
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Question 2 of 4
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When simplifying expressions, like terms can be combined or operated on.
Since there are two terms that both have the variable f, we can combine them.
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2f −6y+3f |
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= |
(2+3)f−6y |
Solve the constants of like terms |
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= |
5f−6y |
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Question 3 of 4
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When simplifying expressions, like terms can be combined or operated on.
There are two terms that both have the variable x2, so we can combine them.
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7x2 +3x−4x2 −x |
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= |
(7−4)x2+3x−x |
Solve the constants of like terms |
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= |
3x2+3x−x |
There are also two terms that both have the variable x, so we can combine them.
Note that variables without constants have 1 as a constants.
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3x2+3x−x |
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= |
3x2+(3−1)x |
Solve the constants of like terms |
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= |
3x2+2x |
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Question 4 of 4
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When simplifying expressions, like terms can be combined or operated on.
There are two terms that both have the variable m2, so we can combine them.
Note that variables without constants have 1 as a constant.
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3m2 +4−2m+m2 +9 |
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= |
(3−1)m2+4−2m+9 |
Solve the constants of like terms |
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= |
4m2+4−2m+9 |
There are also two terms that have no variables, so we can combine them.
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4m2+4 −2m+9 |
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= |
4m2−2m+(4+9) |
Solve the constants of like terms |
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= |
4m2−2m+13 |