(2^2+4^2+............+20^2)-(1^2+3^2+5^2+.....+19^2)
x^2+100x-14400=
fuck
1+1=
f(x)= (3x-5)^(-3/2)
(20)/((-x)^2)=(125)/((-x-d)^2)
(20)/((-x)^2)=(125)/((-x-5)^2)
-8+7/3
highest common factor of 12 and 2
highest common factor of 16 and 40