А) (х + 4)(х – 3) + (х – 5)(х + 4) = 0; б) (x2 – 3)(х + 2) + (х2 + 3)(х – 2) = 4;
в) (х — 4)(х + 3) + (х — 2)(х + 3) = 0

г) (x2 – 1)(х – 4) + (х2 + 1)(х + 4) = 6.

Question

Алгебра: А) (х + 4)(х – 3) + (х – 5)(х + 4) = 0; б) (x2 – 3)(х + 2) + (х2 + 3)(х – 2) = 4; в) (х — 4)(х + 3) + (х — 2)(х + 3) = 0г) (x2 – 1)(х – 4) + (х2 + 1)(х + 4) = 6.​

amozgaleva96 · Answer

Объяснение:а) (х+4)(х-3)+(х-5)(х+4)=0(х+4)(х-3+х-5)=0(х+4)(2х-8)=02х2-8х+8х-32=02х2-32=0Х2-16=0Х2=16Х1= - 4Х2=4б)(х2-3)(х+2)+(х2+3)(х-2)=4Х3+2х2-3х-6+х3-2х2+3х-6=42х3-12=42х3=4+122х3=16Х3=8Х=2в)(х-4)(х+3)+(х-2)(х+3)=0(х+3)(х-4+х-2)=0(х+3)(2х-6)=02х2-6х+6х-18=02х2-18=0Х2-9=0Х2=9Х=+- 3г)(х2-1)(х-4)+(х2+1)(х+4)=6Х3-4х2-х+4+х3+4х2+х+4=62х3+8=62х3=6-82х3= - 2Х3= - 1Х= - 1...

А) (х + 4)(х – 3) + (х – 5)(х + 4) = 0; б) (x2 – 3)(х + 2) + (х2 + 3)(х – 2) = 4; в) (х — 4)(х + 3) + (х — 2)(х + 3) = 0г) (x2 – 1)(х – 4) + (х2 + 1)(х + 4) = 6.​

Популярные вопросы

А) (х + 4)(х – 3) + (х – 5)(х + 4) = 0; б) (x2 – 3)(х + 2) + (х2 + 3)(х – 2) = 4;
в) (х — 4)(х + 3) + (х — 2)(х + 3) = 0

г) (x2 – 1)(х – 4) + (х2 + 1)(х + 4) = 6.