9.3 revision Algebra intro cvu2020 virtual class

3.2 USING PRONUMERALS

4 in 4a²

• Pronumeral

• Coefficient

• Power

• Variable

Tags

CCSS.6.EE.A.2B

3.2 USING PRONUMERALS

What is the number multiplied by the variable called?

• variable

• term

• constant

• coefficient

Tags

CCSS.6.EE.A.2B

3.2 USING PRONUMERALS

What are the variables of 7x+6y-9

• 6,7

• 9

• 6y, 7x

• x, y

Tags

CCSS.6.EE.A.2B

3.3 WORDED PROBLEMS

Translate to an algebraic expression.

5 less than the quotient of 7 and s

• (7 ÷ s) - 5

• 5 - (7 ÷ s)

• 7(s - 5)

• 5 - 7s

Tags

CCSS.6.EE.A.2A

3.3 WORDED PROBLEMS

Three less than twice a number

• 2x − 3

• 3x − 2

• 3 − 2x

• 2 − 3x

Tags

CCSS.6.EE.A.2A

3.3 WORDED PROBLEMS

two times the sum of a number and five

• 2 + y + 5

• 2y + 5

• 2(y + 5)

• 2 − y + 5

Tags

CCSS.6.EE.A.2A

3.4 SIMPLIFY

Simplify:  $x^2-5x+2+3x^2+7x-8$  

•  $4x^2+12x+10$  

•  $-2x^2+2x+10$  

•  $4x^2+2x-6$  

•  $2x^2-12x-6$  

Tags

CCSS.7.EE.A.1

3.4 SIMPLIFY

 $-8x^3+12x^3-6x^2-3x^2+x-4x+9+8$  

•  $4x^3-9x^2-3x+17$  

•  $20x^3+3x^2-5x+18$  

•  $-4x^3+9x^2+3x+19$  

•  $4x^3-9x^2-3x+19$  

Tags

CCSS.7.EE.A.1

3.5 EXPANDING

 $\left(2x-5\right)\left(6x+3\right)$  

•  $12x^2-24x-15$  

•  $-4x-8$  

•  $-4x-2$  

•  $8x-2$  

Tags

CCSS.HSA.APR.A.1

Expand:  $2x\left(3x-4y\right)$  

•  $6x^{2\ }-8y$  

•  $6x^{2\ }+8xy$  

•  $5x^{2\ }-6xy$  

•  $6x^{2\ }-8xy$  

Tags

CCSS.7.EE.A.1