To find the second root formula of the first 3: a > 0 > b, simplify the root sign (a square - 4A + 4) + root sign (1,4 + B + b square) 3>a>2>0>-1>b>-2

To find the second root formula of the first 3: a > 0 > b, simplify the root sign (a square - 4A + 4) + root sign (1,4 + B + b square) 3>a>2>0>-1>b>-2

A square - 4A + 4 = (A-2) ^ 2
1 / 4 + B + bsquare = (B + 1 / 2) ^ 2
√(a-2)^2+(b+1/2)^2
=|a-2|+|b+1/2|
1) 0

Square of root 2a-3 4a-9 calculation

Simplification?
(4a²-9)/√(2a-3)
=(4a²-9)√(2a-3)/(2a-3)
=(2a+3)(2a-3)√(2a-3)/(2a-3)
=(2a+3)√(2a-3)

The cube of (- 2) × the square of (- 4) + the cube of (- 4) × (- 1 / 2) 2-27 under the third root=

The cube of (- 2) × the square of (- 4) + the cube of (- 4) × (- 1 / 2) 2-27 under the third root
=-8×4-4×1/4-3
=-32-1-3
=-36

In the following groups of root formulas, the same quadratic radical is () a root sign 2 and root 3 B root sign 2 and 1 / 2 of root sign C square B of root sign 4A and root sign ab In the following groups of root formulas, the same quadratic radical is () a root sign 2 and root 3 B root sign 2 and 1 / 2 C square B of root sign 4a, cube D of root sign AB, root sign A-1 and root sign a + 1

Among the following groups of radical, the one that is the same kind of quadratic radical is (b)
A root sign 2 and root 3 B root sign 2 and 1 / 2 of root sign C square B of root sign 4A and cube D of root sign AB root sign A-1 and root sign a + 1
If there is anything you don't understand, you can ask,

Given that 3 times the root sign 4 + 3 times the root 2 + 3 times the root 1, then 3 parts of a + 3 times the square of a + 1= Ask right, right, add 50 points, money is not a problem

No matter how, we should copy the right question first. The given known is inexplicable, and has nothing to do with the sought root. It is estimated that the third root sign is regarded as the third root sign, and at the same time, "a =" is omitted. The title is as follows: a = 3 times root 4 + 3 times root 2 + 3 times root 1, 3 / A + 3 / A ^ 2 + 1 / A ^ 3 is known, (3 times root sign 2-1

Calculation: the square root of a root 8a-2a is 1 / 3 of root 8A + the cube of root 2A

2A radical (8a)

7A root sign 8a-2a square root sign 1 / 8A + 7a root sign 2A

7A root sign 8a-2a square root sign 1 / 8A + 7a root sign 2A
=14A root number 2a-2 fraction a root number 2A + 7a root sign 2A
=21a root 2a-2 fraction a root sign a
=(20 and 1 / 2) a root sign a

The square of a times the square of root 8A + 3A times the cube of root 50A [calculation]

The original formula = 2A √ (2a) + 15A √ (2a)
=17a²√(2a)

1. (- 3) 2 + (- 3) * 2-radical 20 2. Given the absolute value of X-1 = 3, the absolute value of y = 2, tangent XY < 0, find the cube root of X + y

1.（－3)^2+（－3）*2－√20=9-6-2√5.
=6-2√5.
=2(3-√5).
2. Known: | X-1 | = 3, | y | = 2, and XY

If the absolute value of the radical x ^ 6-4 + x-radical y = 0, find the cube root of XY

(x ^ 6-4) + | X - √ y | = 0, because √ (x ^ 6-4) > = 0, | X - √ y | = 0,
So x ^ 6-4 = 0, and X - √ y = 0,
X = cubic root (2), y = cubic root (4),
So the cube root of xy = y ^ (5 / 6) = 2 ^ (5 / 9)