№1
РАСКРЫТЬ СКОБКИ,приравлять к о
х=6/11
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
№1
РАСКРЫТЬ СКОБКИ,приравлять к о
х=6/11
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