Solving Polynomials Review

• -5i
• 5
• 5i
• -5

Solve x² - 5x + 10 = 0

• (5 - i√15)/2  ,  (5 + i√15)/2
• (5 - √15)/2  ,  (5 + √15)/2
• (5 - i√65)/2  ,  (5 + i√65)/2
• (5 - √65)/2  ,  (5 + √65)/2

Simplify √-48

• 4i
• -4√3
• 4i√3
• 12i

QUESTION 5

• A
• B 
• C 
• D 

What is the remainder when      a³ - 4 is divided by a+2? 

• -2
• -6
• -12
• 0

if f(x) = 3x² -9x -20, find the value of f(5) using synthetic division.

• 0
• 10
• 15
• -7

How could you determine    if x-2 is a factor of 2x³-5x²+x-2?

• Use synthetic division and see if the quotient is even
• Ask the person sitting next to me
• Use synthetic division and see if the remainder is zero
• Flip a coin

            Is (x-2) a factor of             f(x)= x³-8x²+14x-4?

• Yes, (x-2) is a factor. There is a remainder.
• No, (x-2) is  not a factor. The remainder is zero.
• Yes, (x-2) is a factor. The remainder is zero.
• No, (x-2) is  not a factor. There is a remainder. 

Tags

CCSS.HSA.APR.B.2

i⁴⁰

• 1

• -1

• -i

• i

(-1 + 5i) + (-2 - 3i)

• -3 + 8i

• 3 - 8i

• -3 - 2i

• -3 + 2i