Grade 9 Math

POLYNOMIALS

1

x × x

x²

2

3x + 4x − 2

7x − 2

3

4x - 2x

4x

4

 3x² + 2y + 2x²

5x² + 2y

5

4x² + 3x − x² + 5x − 7

3x² + 8x − 7

EXPONENTS

1

2¹⁰

1024

2

10000⁰

1

3

3(2)⁴

48

4

7³ ÷ 7²

7

5

(4³ × 2²) ÷ (2³ × 2⁵)

2

EQUATIONS

1

2v = 6

3

2

4x − 5 = 15

x = 5

3

2(x + 1.5) = 7

x = 2

4

3 + 2k = 2 + 4k

k = 0.5

5

T/1.6 + 5.9 = −3.2

T = -14.56

INEQUALITIES

1

x + 1 > 3

 x > 2

2

2x > 6

x > 3

3

−2 < 2x

x > −1

4

−8x ≥ 24

x ≤ −3

5

−4x + 6 > 72

x < −16.5

PATTERNS & RELATIONS

1

3, 6, 9, 12, x

x = 15

2

5, 10, 20, 40, x

 x = 80

3

2, 6, 12, 20, x

x=30

4

1, 4, 9, 16, x

x = 25

5

2, 5, 11, 23, x

x=47