(7x+2)(20-3x/4) = 140x + 40 - 21x²/4 - 3x/2 = -21/4 x² + 138 1/2 x + 40
this is one of those multiplications that doesn't make the result look any simpler...
The answer is A.
If you divide 4 into all of the answers the only answer that will give you a whole number is 36. example 36/4 = 9
