The formula this page uses
Type expressions the way a computer parses them: x^2 for x², sqrt(x) for √x, ln(x) for natural log, pi for π
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WebAssign Math Help
Solve webassign math help problems with clear steps, notation, and a final check.
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Evaluate the governing formula locally in your browser. Define each known quantity once, then change values to test another case instantly.
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General math
WebAssign Math Help explained
The short version
- WebAssign grades what you type, so the syntax matters as much as the mathematics.
- 1/2x is read as x divided by 2, not 1 divided by 2x. Brackets are how you say what you mean.
- Numeric answers are graded within a tolerance, so carry full precision and round only at the end.
What each part means
SymbolWhat it means
^ — Powerx^2 means x squared. x2 means nothing and xx will not be read as a power either.
sqrt( ) — Square rootsqrt(x + 1) roots the whole bracket; sqrt(x) + 1 roots only the x.
ln vs log — Two different logsln is base e. On most WebAssign questions log means base 10, so they are not interchangeable.
tolerance — Accepted errorNumeric answers are usually accepted within a small percentage, but rounding early can still fall outside it.
Show your work: a full example
- The questiondifferentiate f(x) = (3x² + 1)/x
- Split the fraction first3x²/x + 1/x = 3x + x⁻¹
- Differentiate the first term3
- Differentiate x⁻¹ by the power rule−1·x⁻² = −1/x²
- The derivativef′(x) = 3 − 1/x²
- Type it exactly3 - 1/x^2
- Check what a missing bracket would do3 - 1/x**2 typed as 3 - 1/x^2 is right, but 3 - (1/x)^2 is also 3 − 1/x², while 3 - 1/x*2 would be read as 3 − 2/x
A second, different case
- A different case: an exact value with a logarithmsolve 3e^(2x) = 21
- Divide both sides by 3e^(2x) = 7
- Take the natural log of both sides2x = ln 7
- Divide by 2x = ln(7)/2
- As a decimal1.9459101 ÷ 2 = 0.9729551
- Type the exact formln(7)/2
- If a decimal is requested instead0.9730 to four places, never 0.97 unless the question says two places
Copy-ready example
differentiate f(x) = (3x² + 1)/x
The question
Questions about the WebAssign Math Help
Does this calculator submit answers to WebAssign?
No. It works the same problem so you can compare your steps and your final expression against a full solution. Nothing here touches your assignment or your account.
Why was my answer marked wrong when it equals the right value?
Usually the syntax, not the maths. 1/2x, e^2x and sqrt x + 1 all evaluate to something other than what you intended, and the grader sees only what was typed.
Should I give the exact form or a decimal?
Give the exact form unless the question asks for decimals or specifies places. ln(7)/2 is always accepted where 0.973 might not be, because exact answers cannot drift outside a tolerance.
How much rounding is safe on a numeric answer?
Round only once, at the very end, and keep at least two more digits than the question asks for while you work. Intermediate rounding is the single most common cause of an answer landing just outside the accepted range.