Is 2(x - 4) + x + x and 2[ (x - 4) + x] equivalent and prove they are equivalent using properties

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.

F(x)=5/6x+3 which of the following is true