Question

Which of the following is equivalent to 63−−√+7–√−28−−√?

a) 4√7
b) 5√2
c) 6√2
d) 7√3
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Answer 1

To simplify the expression 63√ + 7√ - 28√, combine like terms to get 3√7 + 7√ - 14√2.

Step-by-step explanation:

To simplify the expression 63√ + 7√ - 28√, we can combine like terms. Let's simplify each term separately:

63√ can be simplified to 3√7.

7√ remains unchanged.

28√ can be simplified to 2√2 * 7.

Now, let's combine the terms:

3√7 + 7√ - 2√2 * 7 = 3√7 + 7√ - 14√2.

Therefore, the expression 63√ + 7√ - 28√ is equivalent to 3√7 + 7√ - 14√2.