Adding Like Terms Practice Question

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Algebra expression 5x + 3x^2 -2x -5x^2 +7
Question 2
Simplify the following expression:

Answer

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A. 5x2 +10x +7
B. 8x2 +3x +7
C. 3x2 +8x +7
D. x2 +10x +7
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Step by Step Solutions 

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Step 1
First, arrange the like terms as shown.
Arrange the terms
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Step 2
Now add the terms +3x2 and +5x2 together. You will get 8x2.
Add terms +3x^2 and +5x^2 to get +8x^2
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Step 3
Now add the like terms +5x and -2x together. You will get 3x.
Add terms 5x and -2x to get 3x
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Step 4
There is no more like terms in this expression. This expression cannot be simplified further.
The simplified expression is 3x +8x^2 +7
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Step 5
The final expression is 3x +8x2 +7.  You can rearrange the expression as 8x2 +3x +7 so it looks neater. Therefore, the answer is B.
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