Entering Algebraic Expressions or Equations

This question asks for an algebraic expression.

With these types of questions, be sure to use the variables indicated. In your answer, you can also use mathematical expressions for numerical calculations.

Examples:

Type	To get	Comment
-3x^2+5	$\displaystyle -{3}{x}^{{2}}+{5}$	Notice the ^ symbol for powers
(2+x)/(3-x)	$\displaystyle \frac{{{2}+{x}}}{{{3}-{x}}}$	Notice you need parentheses around the numerator and denominator
sqrt(x-5)	$\displaystyle \sqrt{{{x}-{5}}}$	Be sure to put parentheses around the input: sqrt(x+3) is OK, but sqrtx+3 or sqrt x+3 is not.
3^(x+7)	$\displaystyle {3}^{{{x}+{7}}}$	Parentheses keeps the $\displaystyle {x}+{7}$ together as the power
1/(x(x+1))	$\displaystyle \frac{{1}}{{{x}{\left({x}+{1}\right)}}}$	You may need nested parentheses
5/3x+2/3	$\displaystyle \frac{{5}}{{3}}{x}+\frac{{2}}{{3}}$	Fractions are automatically formatted vertically when previewed

Unless the problem gives specific directions, any algebraically equivalent expression is acceptable. For example, if the answer was $\displaystyle {\left({x}+{2}\right)}{\left({x}+{3}\right)}$, then $\displaystyle {\left({x}+{3}\right)}{\left({x}+{2}\right)}$ and $\displaystyle {\left({3}+{x}\right)}{\left({2}+{x}\right)}$ would also be acceptable.

Try it here. Use the Preview button to see how the computer is interpreting what you typed.

A) Enter the expression $\displaystyle {3}{x}^{{2}}+{7}{x}-{4}$:

Your input: Preview Question 6 Part 1 of 3  

B) Enter the expression $\displaystyle \frac{{-{5}{y}+{8}}}{{{3}{y}^{{2}}}}$:

Your input: Preview Question 6 Part 2 of 3  

C) Enter the expression $\displaystyle {w}^{{2}}+{3}\sqrt{{{w}+{1}}}$:

Your input: Preview Question 6 Part 3 of 3