A) 2x^13a-2y^7b-1
B) 2x^7a-6y^3b-3
C) x^7a-6y^3b-3
D) -2x^7a-6y^3b-3
E) -2x^13a-2y^7b-1

A) -3a^3x+4b^5x-7c^x+3
B) -3a^x+2b^x+3c^x-3
C) 2a^3x+4b^5x-7c^x+3
D) -2a^3x+4b^5x-7c^x+3
E) 3a^x+2b^x+3c^x-3

A) (1/8)a-5
B) (1/2)a+5
C) (1/2)a-5
D) (1/4)a-10
E) (1/8)a+5

A) -(1/6)x^a+1y^2a+7+2x⁴y^a+6
B) -(1/6)x^a+1y^2a+7-2x⁴y^a+6
C) (1/6)x^a+1y^2a+7+2x⁴y^a+6
D) (1/6)x^a+1y^2a+7-2x⁴y^a+6
E) 6x^a+1y^2a+7-(1/2)x⁴y^a+6

A) 4x²-3x-7
B) -4x²-3x-7
C) 4x²+3x-7
D) 4x²-3x+7
E) 4x³-3x-7

A) -m^x+2+3m^x+1-2m^x
B) -m^x+2-3m^x+1-2m^x
C) m^x+2-3m^x+1-2m^x
D) m^x+2+3m^x+1-2m^x
E) m^x+2+3m^x+1+2m^x

A) 36m²n⁸+36m⁶n⁴p-9m¹⁰p²
B) -36m²n⁸-36m⁶n⁴p-9m¹⁰p²
C) 36m²n⁸-36m⁶n⁴p+9m¹⁰p²
D) -36m²n⁸+36m⁶n⁴p+9m¹⁰p²
E) 36m²n⁸+36m⁶n⁴p+9m¹⁰p²

A) a¹²-2a⁶b⁴-b⁸
B) a¹²-2a⁶b⁴+b⁸
C) -a¹²-2a⁶b⁴+b⁸
D) -a¹⁰-2a⁵b⁵-b¹⁰
E) -a¹²-2a⁶b⁴-b⁸

A) a²-(1/9)b²+c²+ac+ab-(2/3)bc
B) (1/9)a²+(1/4)b²+c²+(1/3)ab+(2/3)ac+bc
C) (1/9)a²-(1/4)b²+c²+(1/3)ab+(2/3)ac+bc
D) a²-(1/9)b²+c²+ac-ab-(2/3)bc
E) a²-(1/9)b²-c²-ac+ab-(2/3)bc

A) (9/x²)+(4/y²)+(1/z²)+(12/xy)-(6/xz)-(4/yz)
B) (4/x²)+(9/y²)-(1/z²)-(12/xy)+(4/xz)-(6/yz)
C) (9/x²)-(4/y²)-(1/z²)-(12/xy)+(6/xz)+(4/yz)
D) (9/x²)+(4/y²)+(1/z²)+(12/xy)-(6/xz)+(4/yz)
E) (9/x²)+(4/y²)+(1/z²)+(12/xy)+(6/xz)+(4/yz)

A) -9a^2x+8+b^6x
B) -9a^2x-6-b^6x+2
C) 9a^2x-6-b^6x+2
D) -9a^2x-6+b^6x+2
E) 9a^2x-6+b^6x+2

A) 64y^4a+6-16x^8a
B) -64y^4a-4+16x^8a+2
C) 64y^4a-6+16x^8a
D) -64y^4a-4-16x^8a+2
E) 64y^4a-4-16x^8a+2