Math Algebra

Factorize the following:

(x² - 9)(x² + 9)

• x⁴ - 81

• (x-9)²

• x² -18x + 81

• 2x - 18

Tags

CCSS.HSA.APR.C.4

What is x⁵, in expanded notation?

• x.x.x

• x.x.x.x

• x.x.x.x.x

• x¹⁰

Tags

CCSS.6.EE.A.1

Use your algebraic skills to solve.

• 13

• 16

Simplify:

2xy³ + x - 2y

If x = 2 and y = -2

• 2(4)(-2)³ + 2 - 2(2)

  = 4(-12) + 2 + 4 = - 22

• 2(8)(-2)³ + 2 - 2(-4)

  = 4(20) + 2 + 4 =32

• 2(2)(-2)³ + 2 - 2(-2)

  = 4(-8) + 2 + 4 = - 26

Tags

CCSS.6.EE.A.2C

The additive inverse of -10 is 10.

• True

• False

Tags

CCSS.7.NS.A.1B

(ax-bx)+(2a-2b)=.........

• (ax-bx)(2a-2b)

• 2xa²+2abx-2abx+-2b²x

• x(a-b)+2(a-b)= (a-b)(x-2)

• None of the above

Tags

CCSS.6.EE.A.3

Solve for x: 2x²=16

• x²=8

• x=4

• x=14

• x=0

Tags

CCSS.8.EE.A.2

Arrange in descending order: 2^x; 2x; 2x²; 2^x; x² ; 2; x , (if x3)

• 2x² ; 2^x; ; x²; 2x; x; 2

• 2^x; 2x; 2x²; 2^x; x² ; 2; x

• x; 2; 2^x; x² ; 2x; 2x²;

• 2; x; 2x; 2x²; 2^x

use your algebraic skills to solve this probrem

• 2 + 10 x 4= 42

• 4 + 10 x 2=28

Tags

CCSS.8.EE.C.7B

State whether the following is true or false:

x + y + z = z + y + x

• False

• True

Tags

CCSS.7.EE.A.1