What does the teacher emphasize about the coefficients when subtracting radicals?
Subtracting two radical expressions with variable radicands
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Mathematics
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11th Grade - University
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Hard
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The video tutorial covers simplifying radicals by rewriting them as square numbers and subtracting them when they have the same radican and root. The teacher explains the process step-by-step, emphasizing the importance of using square numbers like four and nine to simplify the radicals. The tutorial also highlights the need to subtract coefficients when the radican and root are identical.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the result of subtracting 3 sqrt(7X) from 8 sqrt(7X)?
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