simplify: 14/(3x-21)+[(x+4)/((2x^2-6x-56)/(2x+3))]
2,600,000 divided by 4.3
factoise: 6x^2-5x+160
6x^2-5x+160
80% of 115
a-12/a, a>0. Find a²+(4/a)²=?
f(1)=3
f(5)=15
(2x+1)(x-1)^3
((2x+3)/(2x+14))+((14)/(3x-21))
