$n^{2}$-11n+18=0
2-(-5)
10y$^{2}$-11y-6=0
dy/dx= ytanx + (x^2)cosx
what are two square numbers you take away that give you 20
100 $$\sum_{a}^{b}{C}$$
100×80×10mm
2451878.6667
192541.8996
6909352
4516400
12733309535
f(x)=x²-x⁴
()
