expansion

(x - 8) ( x - 8) = ______

• x² - 64
• x² + 64
• x² - 16x + 64
• x² + 16x + 64

Expand (4x − 5)(4x + 5).

• 4x² − 25

• 4x² + 25

• 16x² + 25

• 16x² − 25

Tags

CCSS.7.EE.A.1

Expand (x−4)².

• x² −8x+16

• x² −8x−16

• x² +8x+16

• x² −16

Tags

CCSS.HSA.APR.C.5

 $\left(4a+2b\right)^2=$ 

•  $16a^2+8ab-4b^2$  

•  $16a^2-8ab-4b^2$  

•  $16a^2-8ab+4b^2$ 

•  $16a^2+8ab+4b^2$ 

(a+b)^3

• a^3 - b^3+3ab(a-b)

• a^3 + b^3+3ab(a-b)

• a^3 - b^3-3ab(a-b)

• a^3 + b^3+3ab(a+b)

Which of the following expression is equivalent to the expression (y − x + 3) (y + x − 3)?

• y² − (x − 3)²
• (y − x)² − 9
• x² − (y + 3)
• (x + y)² − 9

The simplified form of the expression (y² + 5)(y² - 3) is 

• y⁴ - 3y² - 15
• y⁴ + 2y² + 15
• y⁴ - 3y² + 15
• y⁴ + 2y² - 15

Which of the following expressions is equivalent to the expression 945 × 855?

• 900² − 45²
• 900² + 45²
• 900² + (45 + 55) 900 + (45 × 55)
• 800² + (45 + 55) 800 + 45 × 55

Which of the following expressions is equivalent to the expression 415 × 385?

• 160000 + 225
• 160000 − 225
• (40)² + 15 × 85
• (40)² − 15 × 85

Simplify (a - b + c)(a + b + c)

• a² + 2ab + b² - c²
• a² + 2ac + c² - b²
• a² + 2bc - c² - b²
• a² + 2ac + c² - b²