What is the square root of 6 + 2√5?
Correct answer A. √5 + 1
Explanation
Write 6 + 2√5 as (√5)² + 1² + 2 × √5 × 1 = (√5 + 1)². So its square root is √5 + 1.
Answer checked How we write and check questions
Tip: press A, B, C or D to answer, and N for the next question.
Advertisement
More Square Root and Cube Root questions
See allThe square root of 64009 is:
Correct answer A. 253
How many two-digit numbers satisfy this property.: The last digit (unit’s digit) of the square of the two-digit number is 8?
Correct answer D. None of these
Advertisement
0.0169 x? = 1.3
Correct answer B. 100
625/11 x 14/25 x 11/196 is equal to:
Correct answer A. 5
Discussion