(x+6)(х-1)-(х+3)(х-4)=5х (8х+10)(3-х)=(11-2х)(4х+5)-5 (х+6)(х-3)+(х+3)(х+9)=9

Question

(x+6)(х-1)-(х+3)(х-4)=5х


(8х+10)(3-х)=(11-2х)(4х+5)-5


(х+6)(х-3)+(х+3)(х+9)=9

Answer 1

№1

РАСКРЫТЬ СКОБКИ,приравлять к о

х=6/11

Answer 2

1)

1) (X+6)*(X-1) = X^2 + 5X - 6

2) (X+3)*(X-4) = X^2 - X - 12

3) X^2 + 5X - 6 -X^2 + X + 12 = 6X + 6

4) 6X + 6 = 5X

X = - 6

ОТВЕТ: Х = - 6

2)

1) (8X+10)*(3-X) = -8X^2 + 14X + 30

2) (11-2X)*(4X+5) = - 8X^2 + 34X + 55

3) - 8X^2 + 14X + 30 = - 8X^2 + 34X + 55 - 5

14X + 30 = 34X + 50

24X = - 20

X = - 20\24 = - 5\6

ОТВЕТ: Х = - 5\6