(5/6) x + 2/7 = 1
-3 3/10 +8
$$\sum_{r=6}^{n}{6r^2-6r}$$
$$\sum_{r=6}^{n}{6r^2-6}$$
SOLve this 2B,4C,8E,14H,?
$$\sum_{r=6}^{n}{6r^2-2}$$
Fully simplify c^2t^6 x c^5t^2
0.049*75+3.033
Fully simplify the expression below. 6t^5 x 2t^4
Fully simplify 8t^6 / 2t^3
solve gf(x) Where g(x)=1/x^3 for x<0 and f(x)=3x^2/(4x-1) for x<0