(x+5)/(4x^2-1) - (2-x)/(2x-1)^2 = 6/(4x+2)
2 1/6 - 1 5/9
20x^2+11x-3=0
7x=40
8x=?
1/10 -3/5
3/5 =1/10
20x^2+7x-3=0
2^x+x-1.6=0
2^x+x-1.6=
how to calculate area of a trapezium
