Polynomial add/subtract/multiply

How many terms are in this polynomial?

2x³-8x²+3x-7

• 7

• 1

• 4

• 2

What is the coefficient of this term?

9x³

• None

• 9

• 3

• x

Which one is written in Standard form

• 4 + 5b³
• 4n³ - n + 6n²
• 2a² + 9
• 2h⁵ - 5h³ - 8 + 3h

Give the correct name for 
3x²+4x-7

• Quadratic trinomial
• linear binomial
• Quartic trinomail
• Linear Trinomail

Simplify: (x - 5) (x - 3)

• x² + 8x + 15
• x² - 2x - 15
• x² - 8x + 15
• x² - 2x + 15

Simplify: (x + 1) (x² - 2x + 1)

• x³ - x² -x + 1
• x³ - 2x + 2
• x³ + x² + x + 1
• x³ - 3x² - 3x + 1

Perform the indicated operation.

Write answer in descending order.

( 18x² - 13x - 8 ) - ( -7x² - 9x - 17 )

• 9x² - 22x - 25

• 25x² - 4x + 9

• 25x² - 22x + 9

• 25x² - 4x - 25