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Intermediate Algebra

OPENSTAX

$Math Studyset 91影视 Explanations$ Math

OER 2017 Edition 路 1346 pages

ISBN: 9780998625720

Chapter 5: Q.202 (page 536)

In the following exercises, multiply the binomials. Use any method.
$(x^{2} + 8) (x^{2} - 5)$

Short Answer

Expert verified

The product of the given binomials is $x^{4} + 3 x^{2} - 40$

Step by step solution

01

Step 1. Given Information

The given binomials are $(x^{2} + 8) (x^{2} - 5)$

The product is to be determined using any Method.

02

Step 2. Multiplying the binomials

Binomials can be multiplied using three methods: the distributive property, the FOIL method and the Vertical Method.

Using the FOIL Method, the terms are multiplied in the order of First Terms, Outer Terms, Inner Terms and then Last Terms:

$(x^{2} + 8) (x^{2} - 5) = (x^{2}) (x^{2}) + (x^{2}) (- 5) + (8) (x^{2}) + (8) (- 5) (x^{2} + 8) (x^{2} - 5) = x^{4} - 5 x^{2} + 8 x^{2} - 40 (x^{2} + 8) (x^{2} - 5) = x^{4} + 3 x^{2} - 40$

03

Step 3. Conclusion

The product of the binomials is $x^{4} + 3 x^{2} - 40$

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