sean: A= 5x-y; B= x²- 3xy+9y²; C= 3y+x
1.-calcula (a)(b) - c
2.-(b)(c)+a
3.-(a)(b)(c)
4.-a²-3b-c²
helpme plisss
Respuestas
Respuesta dada por:
2
A= 5x-y;
B= x²- 3xy+9y²;
C= 3y+x
1.- (A)(B)-C
![(A)(B) =5 x^{3} y -15x^{2}y^{2}+45xy^{3} (A)(B) =5 x^{3} y -15x^{2}y^{2}+45xy^{3}](https://tex.z-dn.net/?f=%28A%29%28B%29+%3D5+x%5E%7B3%7D++y+-15x%5E%7B2%7Dy%5E%7B2%7D%2B45xy%5E%7B3%7D)
![(A)(B)- C =5 x^{3} y -15x^{2}y^{2}+45xy^{3}-3y-x (A)(B)- C =5 x^{3} y -15x^{2}y^{2}+45xy^{3}-3y-x](https://tex.z-dn.net/?f=%28A%29%28B%29-+C+%3D5+x%5E%7B3%7D+y+-15x%5E%7B2%7Dy%5E%7B2%7D%2B45xy%5E%7B3%7D-3y-x)
2.- (B)(C)+A
![(B)(C) =3yx^{2} -9xy^{2}+27y^{3}+x^{3}-3x^{2}y+9xy^{2} (B)(C) =3yx^{2} -9xy^{2}+27y^{3}+x^{3}-3x^{2}y+9xy^{2}](https://tex.z-dn.net/?f=%28B%29%28C%29+%3D3yx%5E%7B2%7D+-9xy%5E%7B2%7D%2B27y%5E%7B3%7D%2Bx%5E%7B3%7D-3x%5E%7B2%7Dy%2B9xy%5E%7B2%7D)
![(B)(C)+A =3yx^{2} -9xy^{2}+27y^{3}+x^{3}-3x^{2}y+9xy^{2}+5xy (B)(C)+A =3yx^{2} -9xy^{2}+27y^{3}+x^{3}-3x^{2}y+9xy^{2}+5xy](https://tex.z-dn.net/?f=%28B%29%28C%29%2BA+%3D3yx%5E%7B2%7D+-9xy%5E%7B2%7D%2B27y%5E%7B3%7D%2Bx%5E%7B3%7D-3x%5E%7B2%7Dy%2B9xy%5E%7B2%7D%2B5xy)
reduciendo
![(B)(C)+A =27y^{3}+x^{3}+5xy (B)(C)+A =27y^{3}+x^{3}+5xy](https://tex.z-dn.net/?f=%28B%29%28C%29%2BA+%3D27y%5E%7B3%7D%2Bx%5E%7B3%7D%2B5xy)
3.- (A)(B)(C)
![(A)(B) =5 x^{3} y -15x^{2}y^{2}+45xy^{3} (A)(B) =5 x^{3} y -15x^{2}y^{2}+45xy^{3}](https://tex.z-dn.net/?f=%28A%29%28B%29+%3D5+x%5E%7B3%7D+y+-15x%5E%7B2%7Dy%5E%7B2%7D%2B45xy%5E%7B3%7D)
![(A)(B)(C) =15x^{3}y^{2} -45x^{2}y^{3} +135xy^{4} +5x^{4}y -15x^{3}y^{2} +45x^{2}y^{3} (A)(B)(C) =15x^{3}y^{2} -45x^{2}y^{3} +135xy^{4} +5x^{4}y -15x^{3}y^{2} +45x^{2}y^{3}](https://tex.z-dn.net/?f=%28A%29%28B%29%28C%29+%3D15x%5E%7B3%7Dy%5E%7B2%7D+-45x%5E%7B2%7Dy%5E%7B3%7D+%2B135xy%5E%7B4%7D+%2B5x%5E%7B4%7Dy+-15x%5E%7B3%7Dy%5E%7B2%7D+%2B45x%5E%7B2%7Dy%5E%7B3%7D)
reduciendo
![(A)(B)(C) =135xy^{4} +5x^{4}y (A)(B)(C) =135xy^{4} +5x^{4}y](https://tex.z-dn.net/?f=%28A%29%28B%29%28C%29+%3D135xy%5E%7B4%7D+%2B5x%5E%7B4%7Dy)
4.- (A)^2 -3(B) -(C)^2
![A^{2} = 25x^{2}y^{2} A^{2} = 25x^{2}y^{2}](https://tex.z-dn.net/?f=A%5E%7B2%7D+%3D+25x%5E%7B2%7Dy%5E%7B2%7D)
![3(B) = 3x^{2}-9xy+27y^{2} 3(B) = 3x^{2}-9xy+27y^{2}](https://tex.z-dn.net/?f=3%28B%29+%3D+3x%5E%7B2%7D-9xy%2B27y%5E%7B2%7D)
![C^{2} = 9y^{2}+6xy+x^{2} C^{2} = 9y^{2}+6xy+x^{2}](https://tex.z-dn.net/?f=C%5E%7B2%7D+%3D+9y%5E%7B2%7D%2B6xy%2Bx%5E%7B2%7D)
(A)^2 -3(B) -(C)^2 =![25x^{2}y^{2} -3x^{2}+9xy-27y^{2}-9y^{2}-6xy-x^{2} 25x^{2}y^{2} -3x^{2}+9xy-27y^{2}-9y^{2}-6xy-x^{2}](https://tex.z-dn.net/?f=25x%5E%7B2%7Dy%5E%7B2%7D+-3x%5E%7B2%7D%2B9xy-27y%5E%7B2%7D-9y%5E%7B2%7D-6xy-x%5E%7B2%7D)
reduciendo
(A)^2 -3(B) -(C)^2 =![25x^{2}y^{2} -4x^{2}+3xy-36y^{2} 25x^{2}y^{2} -4x^{2}+3xy-36y^{2}](https://tex.z-dn.net/?f=25x%5E%7B2%7Dy%5E%7B2%7D+-4x%5E%7B2%7D%2B3xy-36y%5E%7B2%7D)
1.- (A)(B)-C
2.- (B)(C)+A
reduciendo
3.- (A)(B)(C)
reduciendo
4.- (A)^2 -3(B) -(C)^2
(A)^2 -3(B) -(C)^2 =
reduciendo
(A)^2 -3(B) -(C)^2 =
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