What are the values of a1 and r of the geometric series?

2 - 2 + 2 - 2 + 2

A. a1 = 2 and r = - 2

B. a1 = - 2 and r = 2

C. a1 = - 1 and r = 2

D. a1 = 2 and r = - 1

Hence solve the equation x^3+x^2-6x=0

What are the degree and leading coefficient of the polynomial? 20x-6x^2+8x^3-23

How to solve systems of equation

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How to simplify 3-3 (x-2)