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Gr.7- Math - Expanding
Test Description: Expanding
Instructions: Answer all questions to get your test result.
1) Reduce the like terms : x² + 2y² + 4y²
A
2x² + y
B
6y + x²
C
x² + 6y²
D
10xy
2) Solve: 6xy - 4x² - 6xy + 3x²
A
+ x²
B
12xy
C
-x²
D
7x²
3) Multiply: (2m)(3m)
A
6m
B
6m²
C
- 6m²
D
5m
4) Multiply : (-3b²)(+4ab)
A
12ab
B
ab³
C
-7ab³
D
-12ab³
5) Expand : 2( x³ + 3x + 2x⁴)
A
2x³ + 6x + 2x
B
2x + 6x² + 4x
C
2x³ + 6x + 4x⁴
D
6x³ + 2x + 4x⁴
6) Expand : - 3x(2x - 4x²)
A
-6x + 12x³
B
+6x² - 12x
C
-6x² + 12x³
D
-6x² - 12x³
7) Expand : (x+2)(x - 3)
A
x² - 3x + 6
B
x² + x - 6
C
x² - x + 6
D
x² - x - 6
8) Expand : -3(-x³ - x² + x)
A
3x³ - 3x² + x
B
-3x³ + 3x² + 3x
C
+3x³ + 3x² - 3x
D
- 3x² + 3x
9) Reduce like terms : 2x²y + 4xy - 2x²y + 3x²y + 5xy + 2
A
- 3x²y + 9xy - 2
B
3x²y+ 9xy + 2
C
2x²y - 9xy
D
3x²y - 9xy + 2
10) Expand : (3x² + 3)(2x + 6)
A
6x³ - 18x² + 6x + 18
B
6x³ + 18
C
6x³ + 18x² + 6x + 18
D
6x³ + 6x + 18
*select an answer for all questions
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