( -2 - 2x) (-4 + 3x)=8-6x +8x-6x^2=-6x^2+2x +8 ( -6 - 3x) ( - 5 - 8x)=30+48x+15x+24x^2=24x^2+63x+30 (x + 2) (3+x) = x(x+1) + 2 3x+x^2+6+2x=x^2+x+2 3x-x=2-6 2x=4 x=2 -(x-3) (2x+1) = -2(6+ x²) -2x^2+x-6x-3=-12-2x^2 -2x^2-5x-3=-12-2x^2 -5x=15 x=-3
(-2 - 2x) (-4 + 3x)=8-6x+8x-6x(kwadrat)=8+2x-6x(kwadrat) ( -6 - 3x) ( - 5 - 8x)= 30 +40x + 15x + 24x(kwadrat) = 30 + 55x + 24x(kwadrat) (x + 2) (3+x) = x(x+1) + 2 3x + x(kwadrat) +6 +2x = x(kwadrat) + x + 2 5x + x(kwadrat) + 6 = x(kwadrat) + x + 2 5x - x + x(kwadrat) - x(kwadrat) = 2 - 6 4x = -4 /:4 x = (-1) -(x-3) (2x+1) = -2(6+ x²) - (2x(kwadrat) + x - 6x - 3) = -12 - 2x(kwadrat) -2x(kwadrat) - x + 6x + 3 = -12 - 2x(kwadrat) -2x(kwadrat) + 5x + 3 =-12 - 2x(kwadrat) -2x(kwadrat) + 2x(kwadrat) + 5x = -12 + 3 5x = -9 /:5 x = 1 cała i cztery piąte mam nadzieję,że pomogłam
( -2 - 2x) (-4 + 3x)=8-6x+8x-6x^2=8+2x-6x^2= ( -6 - 3x) ( - 5 - 8x)= 30+48x+15x+24x^2=24x^2+63x+30 (x + 2) (3+x) = x(x+1) + 2 3x+x^2+6+2x=x^2+x+2 4x=-4 x=-1 -(x-3) (2x+1) = -2(6+ x²) -(2x^2+x-6x-3)=-12-2x^2 -x+6x+3=-12 5x=-15 x=-3