(x+5)(x+7)
n
2
+18n+107∈O(n
3
)
-4(4a-3)
32 ÷ 32.64
(2x+7)(2x+7)(3x-1)
y = 2x - 1
intigation of exp(5x)(lnx +1/x)dx
(x-2)(x-2)(x-2)
(-x+y=1) and (4x+2y=23) simultaneous equations