Mr. T Algebra EOC 9 (Polynomials)

Select all of the expressions that are polynomials.

• 4xy - 3x

• 45 + 3d² + d - w³

• 12

The perimeter of the triangle is 3x² + 10x + 20.

What is the length of the third side?

• x² + 10

• x² + 4

• x + 4

• x² + 4x

Find the difference

(5d - 8) - (-2d + 3)

• 3d - 5

• 7d - 11

• 7d - 5

• 7d + 11

Find the sum

(x² + 3x - 9) + (4x² - 6x + 1)

• 4x² - 3x - 8

• 5x² - 3x - 8

• 5x² + 9x - 10

• 4x² + 9x - 10

Simplify:

-3(g² - 4g + 1)

• -3g² + 12g - 3

• 3g² + 12g - 3

• 3g² + 12g + 3

• -3g² - 12g + 3

What is the product of (2x + 7) and (x - 5)?

• 3x + 2

• 2x² - 3x - 35

• 2x² - 10x - 35

• 2x² - 35

If the total area of the light grey area (the whole rectangle minus the dark grey center) is 296 square feet, what is the value of x?

Factor as completely as possible:

36x³ - 24x²

• 6x(6x² - 4x)

• 12x(3x² - 2x)

• 6x²(6x - 4)

• 12x²(3x - 2)

What is the value of

(8a + 3b)²

• 73a²b² + 48ab

• 64a² + 48ab + 9b²

• 64a²+ 9b²

• 32a² + 22ab + 12b²