Get this widget. Step 2: Click on the "Expand" button to find the expansion of the given binomial term. In case you forgot, here is the binomial theorem: Using the theorem, (1 + 2 i) 8 expands to. Here n C x indicates the number . Cause we're going to have 3 to To find the fourth term of (2x+1)7, you need to identify the variables in the problem:

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