x power 2 will be shown by x^2.   ^ is normally above '6' in the keyboard

7 times x may be written 7x or 7*x

9 divide x may be written as 9/x

For \( \frac{3}{4}x \), enter (3/4)x . For \(\frac{3}{4x} \)enter 3/(4x)

Must enter equation in lower case \(x\)

No other variable.

Only \(x\)   Not \(X\)

Must be a correct Quadratic Equation

First, because the app is designed to solve (very) complex equations also...

(2*x-6)*x= (9*x+3)*(1/5)*(x-1) or even (much) more complex

Second, the app is designed for all levels of students... what is useless for one student, may be useful for another... you may ignore simple (useless) steps

Quadratic formula will Not work as it is for \(x^2\) only. However, the final soutions (Exact and Decimal) will be provided in the last two lines.

"Not a Number", like "Math ERROR" shown in calculators. Shows typically, if the denominator is zero

Greek letter 'Iota' = \( \sqrt{-1} \) ... shows if (some) roots are not real. If you have not studied it yet, just say 'No Real Solution'