Evaluate 64^(1/3) + 81^(1/4): animated lesson
A narrated, step-by-step order of operations video lesson with captions. Final answer: 7.
Video with a synthetic English voice and captions. Pick another language for subtitles in that language, or open the interactive version.
Video narrated by a synthetic voice (Piper TTS, en_US-ljspeech-high voice (LJ Speech dataset, public domain)); the steps come from our maths engine and the answer was checked independently. Download MP4 (0.2 MB) · Captions (WebVTT)
Steps on screen
- 1. The problemWorked example
- 2. Step by step
- Read the expression
- Evaluate using the order of operations (parentheses, exponents, multiplication and division, addition and subtraction)
- 3. The answer
64^(1/3) + 81^(1/4) = 7
- 4. Check
- Decimal value: 7
Transcript
The problem. Here is the problem: 64 to the power 1 over 3) plus 81 to the power 1 over 4). Evaluate a numerical expression.
Step by step. Read the expression. Evaluate using the order of operations (parentheses, exponents, multiplication and division, addition and subtraction).
The answer. So the answer is 7. Operations are applied in the standard order: parentheses, exponents, multiplication and division from left to right, then addition and subtraction from left to right.
Check. Decimal value: 7.
About order of operations
Evaluate expressions with brackets, powers, multiplication, division, addition and subtraction in the right order.
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