Use Synthetic Division to Find the Remaining Zeros Given One Imaginary Zero

Use Synthetic Division to Find the Remaining Zeros Given One Imaginary Zero

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains synthetic division, focusing on proving zeros of polynomials. It covers using synthetic division with complex numbers, factoring polynomials, and applying the zero product property to find zeros. The tutorial emphasizes understanding complex conjugates and their role in division.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one method to verify if a number is a zero of a polynomial?

Graphing the polynomial

Performing long division

Using the quadratic formula

Applying the remainder theorem

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When performing synthetic division with complex numbers, what should you be cautious about?

Avoiding multiplication

Using only real numbers

Leaving extra space between coefficients

Ignoring the imaginary part

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying 5i by 10i?

-50i

-50

50

50i

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to include the conjugate when dealing with complex numbers?

To account for all possible zeros

To simplify the polynomial

To ensure all real roots are found

To avoid imaginary numbers

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in finding the zeros of a polynomial using the zero product property?

Divide by the leading coefficient

Graph the polynomial

Set the polynomial equal to zero

Multiply all factors