Simplification 225×0.04=______ .

225×0.04=
225×
0.04=15×0.2=3．
So the answer is: 3

Reduction of 196 * 3 / 225 under radical

(14 * 14 * 3) / (15 * 15)) = 14 / 15 * √ 3. It can't be typeset. It's a bit messy. If you take a closer look, you can write the number that can be square root into the form of product of two numbers, and then put forward it from the radical

How to simplify radical

Root reduction method: √
First debug in Chinese state, press "V", then press "1" after release, you can find "√" in the pop-up dialog box

Simplify and then evaluate: (1-1 / x) / (x ^ 2-2x + 1) / (x ^ 2-1), where x = radical 2

(1-1 / x) / (x ^ 2-2x + 1) / (x ^ 2-1) = [(x-1) / x] / [(x + 1) (x + 1)] / [(x + 1) (x-1)] = [(x-1) / x] / [(x + 1) / [(x + 1) = 1 / [x (x + 1)] = 1 / (2 + radical 2) / [(2 + radical 2) (2-radical 2)] = (2-radical 2) / 2

First simplify and then evaluate: x ^ 2-2x ^ (x-2-x + 2X-4 of 2), where x = 2 + radical 2

(x^2-2x)/(x^2-4)÷[(x-2)-(2x-4)/(x+2)]
=x(x-2)/(x-2)(x+2)÷[(x-2)-(2x-4)/(x+2)]
=x/(x+2)÷[(x-2)-(2x-4)/(x+2)]
=x/(x+2)÷[(x-2)(x+2)-2(x-2)]/(x+2)
=x/(x+2)÷[(x-2)(x+2-2)]/(x+2)
=x/(x+2)÷x(x-2)/(x+2)
=x/(x+2)*(x+2)/x(x-2)
=1/(x-2)
=1/(2+√2-2)
=1/√2
=√2/2

Simplify and then evaluate x ^ 2 (3-x) + X (x ^ 2-2x) + 1, where x equals the root 3 Please write down the steps of the root sign

x^2（3-x)+x(x^2-2x)+1=x^2（3-x)+x^2(x-2)+1=x^2(3-x+x-2)+1=x^2+1
Put the root 3 in
So that's four

Simplify {3 + radical 6 + radical 3} / {Radix 15 + Radix 10 + Radix 5}

Original formula = √ 3 (√ 3 + √ 2 + 1) / √ 5 (√ 3 + √ 2 + 1)
=√3/√5
=√15/5

Simplify root sign 4 + 2 and root sign 3

√（4+2√3）
=√(3+2√3+1)
=√(√3+1)²
=√3+1

Reduction of root 3 / 15

Original formula = root (1 / 5) = (root 5) / 5

First simplify, then evaluate: (2a + 1) 2-2 (2a + 1) + 3, where a= 2．

（2a+1）2-2（2a+1）+3，
=4a2+4a+1-4a-2+3，
=4a2+2，
When a=
At 2:00,
Original formula = 4a2 + 2 = 4 ×（
2）2+2=10．

Simplification 225×0.04=______ .