Algebra by I,S and G

Factorise

100

5x-25 

5(x-5)

200

8x+24

8(x+3)

300

27ab-9a²

9a(3b-a)

400

9h²g-15h³

3h²(3g-5h)

500

42y+28x-56c

14(3y+2x-4c)

Expanding brackets

100

4(x+3)

4x+12

200

-3(p+q)

-3p-3q

300

-4(ab-2a²)

-4ab+8a²

400

(x+5)x(x+2)

x²+7x+10

500

(p+3)x(p-4)

P²-p-12

like terms

100

10/2

5

200

2x5/2

5

300

15x/3

5x

400

12ef/3e

4f

500

24x²/6x

4x

solve for X

100

8X=7

X=7/8

200

4c+X=7h

X=7h-4

300

dX-t=8

X=8+t/d

400

3X-9a=4b

X=4b+9a/3

500

4X+11c=5n+35

X=5n+35-11c/4

Powers

100

axa

a²

200

a² x a⁴ x a³

a⁹

300

4y³ x 2y⁴

8y⁷

400

-5m³ x 10m⁴

-50m⁷

500

10m⁷n³  x  4m²/2m³n²

2m⁶n