First you write it as a fraction as
16/28 and 240/560
240/560 can be simplified to 27/28
16/28 is not equivalent to 27/28
Hope this helps ;)
Because i minus (-5) will come out to neg -4. a positive plus an neg equals an neg
I'd arbitrarily begin by writing the factors 10 and 16. These, in turn, factor to 2 and 5. That's all we need to do here to form the product 160, using 5 once and 2 several times:
160 = 5 * 2^5
(5x-3)(4x+5) the last step you have to look at the two terms that you are adding together the 4x(5x-3) and the 5(5x-3) and see what is similar. well the whole bracket is the same the 5x-3 so factor that out and collect the other leftover terms so the 4x and the +5 and thats what goes in the second bracket
