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Exercises Polynomials and factoring

Example 10.38 from Prealgebra, 10.3 Multiply Polynomials

Multiply Polynomials: example 10.38

Multiply using the FOIL method: $(x + 6) (x + 9) .$

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution

Step 1: Multiply the First terms.

Step 2: Multiply the Outer terms.

Step 3: Multiply the Inner terms.

Step 4: Multiply the Last terms.

Step 5: Combine like terms, when possible.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Multiply using the FOIL method: $(x + 7) (x + 8) .$

How did it go?

PreviousMultiply Polynomials: example 10.37 Next Multiply Polynomials: example 10.39

From Prealgebra (1st edition) by OpenStax (Rice University), section 10.3, licensed under CC BY 4.0. Original at openstax.org. We split the solution into steps; the words, numbers and figures are the book's. OpenStax doesn't endorse this site.