1s algebra revision! $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100...

1S Algebra 1S Algebra Revision!Revision!

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2a + 6f – 7a - f

-5a + 5f

5t2 + 7t – 5t + 4t2

9t2 + 2t

6ac x 5a4

30a5c

(2a5)3

8a15

30x4y2 / 5x3y

6xy

-3 (x + 7)

-3x -21

2ab(4a – 2b)

8a2b – 4ab2

(a + 5)(a – 4)

a2 + a - 20

(4a – 3)(5 + a)

4a2 + 17a - 15

(6 – 2a)(3 + b)

18 + 6b – 6a – 2ab

5a + 10

5(a + 2)

3a + 6f – 3g

3(a + 2f – g)

15a2b – 3ab2

3ab (5a – b)

a2 + 16a + 64

(a + 8)2

c2 - 49

(c + 7)(c – 7)

c / 4 = 3

c = 12

2a – 4 = -14

a = -5

-3m = -27

m = 9

4x + 2 = x - 7

x = -3

15 – 2x = 17 – 3x

x = 2

a = 3, 2a + 1 = ?

7

x = 4, x2 – 3x = ?

4

m = 2, p = 4

2m – 3p = ?

-8

r = -3 and t = -1

3r / (t + 5) = ?

-9/4

5

4

32

2zxy

z

yx

5

4b + 6 = 14

b = 2

(x + 4)(x – 3) = 0

x = -4 and x = 3

(2a + 6)(a – 2) = 0

a = -3 and a = 2

(4a + 2) / 9 = 2

a = 4

c2 + 5c + 6 = 0

ie (c + 3)(c + 2) = 0,

so c = -3 and -2

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