Question

(х - 3) (5 - х)=

(3у - 8) (у - 4)=

(2х - 7) (3 х2 + х - 4)

(6у - (у - 3)(у2 - 2)

(2х - 3) (х+4) - 2 х2 , х= - 4

Answer 1

Ответ:

(х-3) (5-х) = -х^2 + 8х - 15

(3у - 8) (у - 4) = 3х^2 - 20х + 32

(6у - (у - 3)(у2 - 2) = -у^3 + 3у^2 + 8у -6

(2х - 3) (х+4) - 2 х2 , х= - 4

= 5х - 12 = 20-12 = 8