18.6÷16
(x+y)^6 = 64
(x-y)^2 = 16
x+y=
5÷41.5
\frac{35\cdot \frac{51565}{143616}}{14\cdot \frac{10313}{71808}}
22/10 (2*31/10-7/10+25/10)
5 -8/12
make d the subject
c=(a/b)/d
A∩ (B ∩C) =(A ∩ B)∩ C
solve 25/4-21/4
2
∑(X
i
Y
Z
)