2 * [(1/2)^2 + 1/3 + (2/3)^2] : [(2/3)^3 - (1/2)^3]
(3x^3)cos(x^2)
681/2*18/5
350^2 + 300^2 – 2(350)*(300) cos (105°)
30,000 x 0.15
√ 350^2 + 300^2 – 2(350)*(300) cos (105°)
(xy+3x+2y+6/xy-x+2y)(9x-9y/12) simplify
x/3+1=(x+15)/7
1/8 x 3/2 x 6/4
