How to simplify three quarters of radical

How to simplify three quarters of radical

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Simplify the following into (1 + x) parts (x square + X-2)
Reduce 1 + X to (x-1) X
Bring the number in 2 + root 2

First, simplify: (2x-1) 2 + (x + 2) (X-2) - 4x (x-1), and then evaluate, where x = 3．

Original formula = 4x2-4x + 1 + x2-4-4x2 + 4x
=x2-3，
When x=
When 3, the original formula = 3-3 = 0

First simplify, then evaluate: (2x + 1) ^ 2 + (x + 2) (X-2) - 4x (x + 1), where x = 3 root sign 3 / 2

：（2x+1）^2+(x+2)(x-2)-4x(x+1),
=4x²+4x+1+x²-4-4x²-4x
=x²-3
=27/4-3
=15/4

First simplify and then evaluate: (x + 2) 2 + (2x + 1) (2x-1) - 4x (x + 1), where x=- 2．

The original formula = x2 + 4x + 4 + 4x2-1-4x2-4x = x2 + 3,
When x=-
2, the original formula = 2 + 3 = 5

Simplification: 25 / 4 - [(π + 1) zero power - [(π + 1)] - 1 / 3 power of - 27 / 8] + 1 / 64 of - 2 / 3 power

Original formula = 5 / 2-1-3 / 2 + 16 = 16

Simplification: radical (- 27 * a to the third power)

-The third power of 27 * a > 0
So a < 0
So the root sign (- 27 * a to the third power) = - 3A root sign (- 3a)

Simplify or calculate. (x-1) ^ 2 + 4 times (x-1) ^ 4 + 3 times (1-x) ^ 3

[（X-1）^1/2]^2+[(X-1)^1/4]^4+[(1-X)^1/3]^3 =(X-1)+(X-1)+(1-X) =X-1+X-1+1-X =X-1

Simplification 4 - (2 radicals 3) It's a simplification. You don't have to change the root of 2 into a decimal

4-2√3=1-2√3+3=（1-√3）² .
Is that right

Simplification: under radical (4 + 15) + under (4 - 15)

Under root sign (4 + root 15) + under root sign (4 - root 15)
=(√5+√3)/√2+(√5-√3)/√2
=2√5/√2
=√10