Simplify square root of 3 times square root of 21.
A.Square root of 24
B.Square root of 63
C.3 Square root of 7
D.None of the above
√3*√21 = √3*√3*√7 = 3√7
Thank You I Got an 80
To simplify square root of 3 times square root of 21, we can combine the two square roots into one:
√(3) * √(21)
Since both square roots are under the same radical, we can multiply the numbers inside the square roots:
√(3 * 21)
Simplifying further:
√(63)
Therefore, the simplified form is the square root of 63.
The correct answer is B. Square root of 63.
To simplify the expression square root of 3 times square root of 21, you can use the property of square roots that states the square root of a product is equal to the product of the square roots.
So, the square root of 3 times the square root of 21 is equal to the square root of (3 * 21), which simplifies to the square root of 63.
Therefore, the simplified form of the expression is option B, square root of 63.