Mathcad :
simplify () , , , ( , ..);
expand () , ;
factor ( ) , , ;
substitute () ;
convert to partial fraction .
Mathcad , . , Math . , Mathcad .
I.
Mathcad .
. . . , . :
<1> <+> <2> </> <3> <*> <x> <-> <1>
, <Space> (); , . - :*
<*> <(> <1> <-> <9> <*> <> <-> <9> <*> <> <^> <2>
<Space>... <Space> ( 9x-9x2) </> <3> <*> <> <+> <1>
<Space>... <Space> ( ) <+> <1>.
, - : , <Space>. (. 1). ( ) .
2. x(z+1)2 - 2z(x+z).
. , , / . , (.2). ( ) .
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3. 2b + ab2 + 2abc + b2c+ +a2c+ 2 + bc2.
. , . . (<*>), (<^>) <Space>.
Mathcad .
4. f(x) = 0, f(x) = x3+3x2-2.
3 4 Mathcad , .
. f(x) , , . = 0, Trace . ( ) ( ) . : .
3..
4.
5.
3x+8y-9z=12
5x-9y+2z=34
8x-6y+5z=98.
:
1)
:=1 y:=1 z:=1
2) given ();
3) , , = , , .
4) find(x,y,z)=
.