ГДЗ - алгебра - 7 класс - Мордкович

Page 218

№ 1050 x2 − 9 а) y = = x+3 ; x−3

б) y =

x2 − 4 = x−2. x+2

y

y 4

4

2

2

x

x -5 -4 -3 -2 -1 0

1

2 3

4 5

-5 -4 -3 -2 -1 0

-2

-2

-4

-4

№ 1051 x3 + 3x 2 а) y = = x2 ; x+3

б) y =

6

8

4 3 2

4

1

2

X 0

2

218

-2

-1

-2

Y

6 5

4

4

3

3

2

2

2

3

3

Y

1

X 1

2

x4 − 4x2 = x2 . (x − 2)(x + 2)

5

0 -1

1

-2

б) y =

1 -3

-3

X

-1 0 -1

4

№ 1052 x4 − x2 а) y = = x2 ; (x − 1)(x + 1) 6

Y

5

6

-2

4 5

x3 − x 2 = x2 . x −1

Y

-4

1 2 3

-3

-2

-1

0 -1

X 1

2

3


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