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(-x+5)(5+8x)
(x-4y+3)(-x+y-2z)
Pls szybko ​


Odpowiedź :

[tex]( - x + 5) \times (5 + 8x) = - 5x - 8 {x}^{2} + 25 + 40x = 35x - 8 {x}^{2} + 25[/tex]

[tex](x - 4y + 3)( - x + y - 2z) = - {x}^{2} + xy - 2xz + 4xy - 4 {y}^{2} + 8yz - 3x + 3 - 6z = - {x}^{2} + 5xy - 2xz - 4 {y}^{2} + 8yz - 3x + 3 - 6z[/tex]

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