GoldenLeaf

$$\left({\frac{{\mathtt{2}}}{{\mathtt{x}}}}\right){\mathtt{\,\small\textbf+\,}}\left({\frac{{\mathtt{3}}}{{\mathtt{x}}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}}\right) = {\mathtt{0}}$$

$$\left({\mathtt{2}}\right){\mathtt{\,\small\textbf+\,}}\left({\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{x}}\right) = {\mathtt{0}}$$

$${\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{0}}$$

$${\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}} = {\mathtt{0}}$$

$${\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{x}} = -{\mathtt{5}}$$

$${\mathtt{x}} = {\mathtt{\,-\,}}{\frac{{\mathtt{5}}}{{\mathtt{4}}}}$$

It's the excited button (as I call it). It really is the factorial, or, on the calculator here, the '!'

It sounds cooler. Calculator Forum just doesn't feel right. Too plain and straightforward.

It's a forum

about calculators

Except it's not.

$${\frac{{\mathtt{1}}}{\left({\frac{\left({\mathtt{360}}{\mathtt{\,\times\,}}{\mathtt{0.000\: \!291}}\right)}{{\mathtt{2}}}}\right)}} = {\mathtt{19.091\: \!256\: \!204\: \!658\: \!266\: \!5}}$$

To get to the same side!

Ah, I looooooooooove Möbius strips.

FOIL (First, Outer, Inner, Last)

x*x

x*-2

4*x

4*-2

x^2

-2x

4x

-8

The answer is x^2+2x-8

No problem Kato :)

PEMDAS

5*5 = 25

25 + 25 + 5 - 25 = n

50 + 5 - 25 = n

55 - 25 = n

30 = n

Your answer is 30.

(Also, this answer puts me into the Top Answerers list! Yay!)

15.6 / 2 = 7.8