Algebraic identities

(x² - y²) × (x² + y²) = ______

• 2x² + 2y²
• x⁴ - y⁴
• x⁴ + y⁴
• 2x⁴

Tags

CCSS.HSA.APR.A.1

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

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

Tags

CCSS.HSA.APR.A.1

The degree of the polynomial:  4x²y + x² - 2y² is ______

• 2
• 3
• 4
• -2

Expand (4x − 5)(4x + 5).

• 4x² − 25

• 4x² + 25

• 16x² + 25

• 16x² − 25

Tags

CCSS.HSA.APR.C.4

Expand (x−4)².

• x² −8x+16

• x² −8x−16

• x² +8x+16

• x² −16

Tags

CCSS.HSA.APR.C.5

 $\left(4a+2b\right)^2=$ 

•  $16a^2+8ab-4b^2$  

•  $16a^2-8ab-4b^2$  

•  $16a^2-8ab+4b^2$ 

•  $16a^2+8ab+4b^2$ 

Tags

CCSS.HSA.APR.C.4

(51)² - (49)² is

• 200

• 150

• 276

• 189

Tags

CCSS.HSA.APR.C.4

 $Expansion\ of\ \left(x\ +4\right)^2\ is\$  

•  $x^2+8x+16$  

• x $x^2+8x+4$  

•  $x^2-8x+16$  

•  $x^2+8x-16$  

Tags

CCSS.HSA.APR.C.5

The identity (y + a) (y +b) is

• y² + ( a - b )y + ab

• y² - ( a + b )y + ab

• y² + ( a + b )y - ab

• y² + ( a + b )y + ab

Tags

CCSS.HSA.APR.A.1

The product of (a+b) and (a-b) is

• a²+b²

• a²-b²

• ab+bc

• none of these

Tags

CCSS.HSA.APR.A.1