(2x + 6)(x - 4)(x + 4)

Need this fast

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

The sum of two numbers is 12 and their difference is 18 what are the two numbers