A rational expression is the same way that any integer is also a rational number. You can stick to any polynomial in the numerator of a fraction and put "1" in the denominator.
First expand by multiplying
Do 5 x 17=85
Then 5 x 13= 65
As them
85+65=150
8-7=1
150/1=150
Answer-150
U have to cross out the 10 then u have those 4 5s 5x5=25 5x5=25 25+25=50.
(My answer might be wrong so wait until other ppl answer. If I got riGhT like my thing -3-)
