Six expressions are shown. Expression H 24x4β64x2+8x2 Expression K 72x2+27x6+18x4 Expression M 8x7+18x4β48x2 Expression R 40x4β56x2+24x7 Expression T 80x2+15x2β40x2 Expression W 64x5+24x7β32x6 Select all of the expressions that have 8x2 as a factor.