Question

CALCULA A)8X2-28x4/4x2 B)20x4/4x C) 3a5.6a D)6x2/2x2

Answer 1

a) $8x^{2} - 28x^{4} / 4x^{2} = 8x^{2} - 7x^{2} = x^{2}$.
b)$20 x^{4} / 4x = 5x^{4-1} = 5x3$.
c) $3a^{5} * 6a = 18a^{5+1} = 18a^{6}$.
d)$6x^{3} / 2 x^{2} = 3 x^{3-2} = 3x$.