√ 125=5√5
√ 153=3√ 17
√225= 15
√72=6√2
3√ 18-√32=9√2-4√2=5√2
5√32-√200=20√2- 10√2= 10√2
2√27+3√3-√ 12=
6√3+3√3-2√3=7√3
2√20-√45+√500=
4√5-3√5+ 10√5= 1 1√5
(√3-√2)(√3+√2)=
3-2= 1
(√3-√2)(√3-√20)=
3-2√ 15-√6+2√ 10
(√5-√3)(√5-√3)=
5+3-2√ 15=802√ 15
(2√5+ 1)(√5- 1)=
10-2√5+√5- 1=9-√5
(4√5- 1)(2√5- 1)=
40-4√5-2√5+ 1=4 1-6√5
(√ 1 1-3)(√ 1 1+3)=
1 1-9=2
This part is radical simplification.
3x+4y= 18
5x-3y= 1
x,y
What's the difference
The above formula+the following formula is:
8x+y= 19, y= 19-8x, substitute the following formula.
5x-3( 19-8x)= 1
x=2,
So y= 19-8*2=3.
y=3x+4
3y-x=4
x,y
what's up
Substitute the above formula into the following formula.
3(3x+4)-x=4
X=- 1, so y=3(- 1)+4= 1.
3x-4y=2
x+3y=- 1
x,y
what's up
The following formula is changed to x=- 1-3y and substituted into the above formula.
3(- 1-3y)-4y=2
y=-5/ 13,x =- 1-3 *(5/ 13)= 2/ 13
This part is the solution of binary linear equation.
simplify
x^+5x+6=
(x+2)(x+3)
x^-6x+8=
(x-2)(x-4)
x^-5x-24=
(x-8)(x+3)
3x^-5x+2=(3x-2)(x- 1)
8x^+ 18+7=
(2x+ 1)(4x+7)
6x^- 1 1x- 10=
(2x-5)(3x+2)
5x^-80=
.. this is the simplest one.
. . . . What else do you want?
This part is factorization.
All right, every part has been answered. . .