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MULTIPLYING POLYNOMIALS
Test Description: Its my first test
Instructions: Answer all questions to get your test result.
1) (x^3)(x^5) =
A
x^8
B
x^3
C
x^2
D
x^15
2) (3x^2)(-5x^10) =
A
-15x^12
B
-15x^8
C
15x^8
D
15x^12
3) (-8x^2y^3)(-9xy^8) =
A
-72xy^5
B
72xy^5
C
-72x3y11
D
72x^3y^11
4) 3x (x^2– 5x+ 7)=
A
-3x^3– 15x^2+21x
B
3x^3– 14x^2+21x
C
3x^3– 15x^2+21x
D
3x^3– 15x^2+10x
5) -5x^2y^3 (2x^2y– 3x+ 4y^5)=
A
-10x^2y^4+ 15x^3y^3– 20x^2y^8
B
10x^2y^4+ 15x^3y^3– 20x^2y^8
C
-10x^4y^4+ 15x^3y^3– 20x^2y^8
D
10x^4y^4+ 15x^3y^3– 20x^2y^8
6) (x+3)(x+5)=
A
x^2+8x + 8
B
x^2+8x + 15
C
-x^2+8x + 15
D
-x^2+8x + 8
7) (x-5)(x+5)=
A
-x^2–25
B
x^2–25
C
-x^2+25
D
x^2+25
8) (2x+3y)(3x –2y)=
A
5x^2+ 5xy– 6y^2
B
-5x^2+ 5xy– 6y^2
C
6x^2+ 5xy– 6y^2
D
-6x^2+ 5xy– 6y^2
9) (x+3)(x^2– 2x+3)=
A
x^3–5x^2+9x+9
B
x^3–5x^2+9x–9
C
-x^3–5x^2+9x–9
D
x^3–5x^2-9x–9
10) (x^2+3x– 4)(4x^3+5x– 1)=
A
4x^5+12x^4–11x^3+ 14x^2–23x-4
B
4x^5+12x^4–11x^3- 14x^2–23x+4
C
4x^5+12x^4–11x^3+ 14x^2–23x+4
D
4x^5-12x^4–11x^3+ 14x^2–23x+4
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