Algebra 2 Test 5

Which polynomial is in standard form?

• 2 + x + 4

• x⁴ + x⁷

• 2 + x² + 3x

• 2x³ + 3x² + x + 4

How many terms are there is 2x³ +x² + 4x + 6

• 4

• 2

• 1

• 6

What is the coefficent of the 3rd term in x³+ 2x²+ 4x+ 5

• 1

• 2

• 5

• 4

Add the polynomials.
(3x³ + 3x² – 4x + 5) + (x³ – 2x² + x – 4)

• 4x³ + 1x² – 3x + 1
• 2x³ + 1x² - 5x + 9
• 6x³ + 1x - 1x² - 3
• 3x⁵ +1x - 1x⁵ - 3x

Subtract: (2a² + 5a + 3) -(a² - 3a - 4)

• 3a² + 2a - 1
• a² + 8a + 7
• 3a² + 8a + 7
• a² + 2a - 1

Combine like terms:

8x³y + 3x²y + 4xy + 5x²y + 2xy + 7x²y

• 8x³y + 8x²y + 2xy

• 11x³y + 15x²y + 8xy

• 8x³y + 15x²y + 6xy

• 23x²y + 6xy

(5x+2)(x²-3x+6)

• 5x³ - 17x² +24x +12
• 5x³ + 17x² - 24x +12
• 5x³ - 13x² + 24x +12
• 5x³ +13x² - 24x - 12

Find the volume of the rectangular prism with length ( x + 2) width ( x - 4) and height ( 2x + 1).  (HINT: V = lwh)

• x² -8x
• x² -2x -8
• 2x³-3x² -18x-8
• 2x³ -8

The polynomial is...

• Odd degree, positive leading coefficient.
• Odd degree, negative leading coefficient.
• Even degree, positive leading coefficient.
• Even degree, negative leading coefficient.