Subtracting Polynomials: Changing Subtraction to Addition

This video tutorial teaches how to subtract polynomials by converting subtraction into addition. It reviews basic subtraction, distribution, and addition of polynomials, emphasizing the importance of changing signs when multiplying by negative numbers. The tutorial also covers simplifying polynomial expressions and using vertical subtraction for large polynomials.

What is the result of subtracting 8 from 12?

• 4

• 0

• 16

• 20

When multiplying a polynomial by negative one, what must be done to the signs of the terms?

• All terms' signs change

• All terms' signs remain the same

• Only the last term's sign changes

• Only the first term's sign changes

What is the result of combining 3x squared and -x squared?

• 4x squared

• 0

• 2x squared

• 3x squared

How do you handle subtraction when simplifying polynomials?

• Multiply by zero

• Divide by two

• Add the opposite

• Ignore the subtraction

What is the result of combining -8 and -1?

• -9

• 0

• 7

• 9