algebraic identities

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

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

Tags

CCSS.HSA.APR.A.1

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

(x² - y²) × (x² + y²) = ______

• 2x² + 2y²
• x⁴ - y⁴
• x⁴ + y⁴
• 2x⁴

Tags

CCSS.HSA.APR.A.1

(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)

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

(51)² - (49)² is

• 200

• 150

• 276

• 189

product of 51 X 49 find using the identity -------------- and product is --------

• ( a-b) (a + b) = a² -b² , 2499

• (x + a) ( x + b ) = x² + (a + b) x ab , 2499

• (a+b)² = a² + 2ab + b² , 2499

• (a - b)² = a² - 2ab + b² , 2499

 $\left(\frac{2m}{3}\ +\ \frac{3n}{2}\right)^2$   is

•  $\frac{4m}{2}+2mn\ +\ \frac{9n}{4}$  

•  $\frac{4m^2}{2}\ +\ 2mn\ +\ \frac{9n^2}{4}$  

•  $\frac{4m^2}{9}+\ 2mn\ +\ \frac{9n^2}{4}$  

•  $\frac{4m^2}{9}-\ 2mn\ \ +\ \frac{9n^2}{4}$