Algebra Review!

Like monomials

100

Are these like monomials?

-5x²y and -5y²x

No! They don't have the same literal part!

200

Are these like monomials?

-5x⁵y and 10yx⁵

Yes! They have the same literal part!

300

Are these like monomials?

-3abc, 10bac and -5ab

Yes! They have the same literal part

400

Are these like monomials?

-3b⁴c², -8b⁴c² and -9b⁴c²

Yes! They have the same literal part

500

Are these like monomials?

4x⁴y²z⁵, 4y⁴x²z⁵, 4z⁴y²x⁵ and 4y²x⁵z⁴

No! They don't have the same literal part.

Combine like terms

100

-5a-4a=?

-9a

200

-8a-2a-4a+7a=?

-7a

300

-5x+10y-4x-3y=?

-9x+7y

400

-8x-4y+3x+10y-20=?

-5x+6y-20

500

-9x-3y+5-8x-4y-10=?

-x-7y-5

Numerical value I

100

If x=-2

5x=?

-10

200

If x=3

-4x²=?

-36

300

If a=4, b=2

3ab²=?

48

400

If a=2, b=3

-2(a²-b²)=?

10

500

If a=1, b=2

-2(a²-b²)⁴=?

-162

Numerical value II

100

If a=2, b=3

2a-5b=?

-11

200

If x=-4, y=-2

-2x-4y+10=?

26

300

If a=4, b=3

a²-4b=?

4

400

If a=3, b=5

b²-2ab-10=?

-15

500

If a=-2, b=-4, c=3

c³-2a+5b-20=?

-9