Y8 Algebra Review

Collecting like-terms

100

Simplify:

4a+2a

6a

200

Simplify:

3x+5x+2

8x+2

300

Simplify:

2a+4b+3a

5a+4b

400

Simplify:

7x-3y-2x+6y

5x+3y

500

-6x+10y+3-3x-15y

-9x-5y+3

Expanding

100

Expand:

2(x+3)

2x+6

200

Expand:

4(5+y)

20+4y

300

Expand:

a(3-b)

3a-ab

400

Expand then simplify:

5(2x+6)-5x

5x+30

500

Expand then simplify:

x(2x-4)+6(x+11)

2x²+2x+66

Factorising

100

Factorise:

4x+16

4(x+4)

200

3a+15

3(a+5)

300

4x+18

2(2x+9)

400

ab+3a

a(b+3)

500

4x²+24x

4x(x+6)

Solve linear equations

100

Solve for x:

x+4=12

x=8

200

6x=54

x=9

300

Solve for x:

x-12=8

x=20

400

x/4=12

x=48

500

Solve for x:

4x+6=30

x=6

Definitions

100

What it is the word for:

Distributing the term outside the brackets on all the terms inside the brackets.

Expanding

200

What it is the word for:

Finding the highest common factor (HCF) of all the terms and taking it outside the brackets. It is the opposite of expanding.

Factorising

300

State all the inequalities (maths symbols) you have learned

< ; > ; ≤ ; ≥

400

What do you call when you find the solution to a linear equation and you need to check that you answer is correct?

Verify by substitution

500

What type of graph do you get when you plot a linear equation? 

A straight line