Question

(x-4)(x-2)-(x-1)(x-3) при x=1 3/4

Answer 1

=x^2-2x-4x+8-(x^2-3x-x+3)=x^2-6x+8-x^2+4x-3=5-2x; x=7/4; 5-2*7/4=7/2=3,5; Ответ: 3,5

Answer 2

$x^{2} -2x-4x+8- x^{2} +3x+x-3=5-2x \ x=1 frac{3}{4} = frac{7}{4} \ 5-2* frac{7}{4} =5-3,5=1,5$