exam Maths Puzzle Numerical Ability

Dividing Polynomials

x^3 - x + 6 divided by x - 2

please help me if you can

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exam Other Question

((2x)^3(xy)^2) + (2xy)^2(-x)^3 = (8x^3)(x^2y^2)+(4x^2y^2)(-x^3)
= 8x^5y^2-4x^5y^2
= 4x^5y^2
((2x)^3(xy)^2)((2xy)^2(-x)^3 = -32x^10y^4 A constant voltage is applied to a circuit that has a variable resistor. The current varies inverseley as the resistance. At a resistance of 6 ohms, the current is 10 amperes. Find the current when the resistance is 12 ohms.