What is the exact value of the expression the square root of 486. − the square root of 24. + the square root of 6.? Simplify if
possible.
2 answers:
19.5959179422
or if u round to the nearest whole #--> 20
Answer:
plus or minus 9√6
Step-by-step explanation:
Let's find the square root of 486. The best approach is to find factors 486 that happen to be perfect squares.
Note that 486 is evenly divisible by 6; the quotient is 81. 81 is a perfect square: 9^2; 6 is not a perfect square.
Thus, after taking the sqrt of both sides of 486 = 81*6, we get √486 = plus or minus √81√6, or .plus or minus 9√6
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