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Adding And Subtracting Polynomials
Test Description: Add and Subtract Polynomials
Instructions: Answer all questions to get your test result.
1) (-3 + 3n^5 + 6n^3) + (7n^5 + 5n^3 - 3)
A
4n^5 + 8n^3 + 3
B
15n^8
C
10n^5 + 11n^3 - 6
D
10 + 11n^5 - 6n^3
2) (12p^2 + 15p + 3) - (2p^2 + 17p - 2)
A
10p^2 + 2p - 5
B
10p^4 - 2p^2 + 5
C
10p^2 - 2p + 1
D
10p^2 - 2p + 5
3) (8x^ 8 - 9x^ 3 + 3x^ 2 + 9) + (4x^ 7 + 6x^ 3 - 2x)
A
8x^ 8 + 4x^ 7 - 3x^ 3 + 3x^ 2 - 2x + 9
B
12x ^8 - 15x^ 3 + 3x^ 2 - 2x + 9
C
8x^ 8 + 4x^ 7 + 3x^ 3 + 3x^ 2 - 2x + 9
D
12x ^8 - 3x^ 3 + 3x^ 2 - 2x + 9
4) (10n + 4n^7 - 5n^6) - (11n^6 + 7n^7 - 18n)
A
-3n^7 - 16n^6 - 8n
B
9n^14
C
-3n^7 - 16n^6 + 28n
D
-3n^7 + 2n^6 - 8n
5) Find the difference between the two polynomials by subtracting (7x^3 –5x + 8) –(4x^3 –2x + 1)
A
3x^3 –7x –7
B
3x^3 + 3x –7
C
3x^3 - 3x + 7
D
3x^3 –7x + 7
6) Find the sum of the two polynomials (2x^3 + 3x^2 –5) + (3x^2 + 7)
A
2x^3 + 6x^2 –12
B
2x^3 + 2
C
8x^2 + 2
D
2x^3 + 6x^2 + 2
7) Find the sum of the two polynomials wo polynomials (5x^2 –3) + (8x^2 –1)
A
13x^2 + 2
B
-3x^2 + 2
C
13x^2 –4
D
3x^2 –4
8) Find the difference: 2r ^2 +6r +7 and 3r^ 2 +5r +8
A
r^ 2 −r −1
B
r^ 2 +r −1
C
r ^2 +r +1
D
−r ^2 +r −1
9) If the length of a rectangle in terms of x is 5x^2 + 3x + 6, and its width is 7x + 9, what is the perimeter of this rectangle? (perimeter=add all sides).
A
10x^5+20x+30
B
10x^2+2x+3
C
20x^2+20x+30
D
10x^2+20x+30
10) Subtract 2ab from −2ab.
A
2ab
B
-4ab
C
ab
D
4ab
*select an answer for all questions
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