-4x-x*2
3=3-3=3-3
36=x^2+y^2−6x−8y+25
16=x^2+y^2−18x−16y+145
$$\sum_{a}^{b}{C}$$ $$\prod_{a}^{b}{C}$$ $$\begin{bmatrix} a & b \\\\ c & d \end{bmatrix}$$
4(x+3) + m(x+3)
9. A can do a piece of work in 7 days of 9 hours each and B can do it in 6 days of 7 hours each. How long will they take to do it ...
Find how many three-letter words can be formed out with the letters of the word equations
10+10(30*10)-20/5
solve (-a)^(b-c)
Nonzero real numbers
x
x,
y
y,
z
z are such that
2
−
=
.
−yz=y
2...
