Subtract 8√23 - √23.
A. 7√23
B. 7√46
C. 8√23
D. 8√46
To subtract 8√23 - √23, we can simplify the expression by combining like terms.
√23 is a like term in both quantities, so we can subtract them directly:
8√23 - √23 = (8 - 1)√23 = 7√23
Therefore, the answer is A. 7√23.
To subtract 8√23 - √23, we can simplify the expression by combining like terms.
√23 is a like term in both parts of the expression, so we can subtract the coefficients (numbers in front of √23) and keep the same radical (√23).
8√23 - √23 = (8 - 1)√23 = 7√23
Therefore, the answer is A. 7√23.