146+227=?
415
12x8
96
48x11
528
-28÷-57=
0.49122807017
f(x)=∫0∞1+sin2(x)xne−x2dx+∑k=1∞k!(−1)kxk+limn→∞(1+nx)n+dx5d5(ln(x2+1))
no known answer