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5.04 Multiplying Square Roots Basic Algebra: One Step at a Time. Page 420-430 #25, 54, 60, 62, 64, 66, 70, 78, Extra Problem.
Dr. Robert J. Rapalje Seminole Community College Sanford, FL 32773
To see Section 5.04, with detailed explanations, examples, exercises, and answers, click here!
p. 422:
25.
You have a product of two numbers times the product of two more numbers. This is actually the product of four numbers. You may multiply these numbers in any order you wish. It will be helpful to multiply the numbers that are OUTSIDE the square root and keep them OUTSIDE the square root, then multiply the numbers that are INSIDE the square root, and keep them INSIDE the square root.
Now, simplify the square root (if possible)!
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Calculate the problem:
Calculate the answer:
Product of Binomials: “F OI L” p. 427: F O I L
54.
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If radicals can be simplified, make two separate radicals for the radicals above:
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Place the perfect square in the first radical:.
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Place the other factor that is “left-over” in the second radical.
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Take square roots of the perfect squares:
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There are no like terms, so this is the final answer.:
p. 428: F O I L
60.
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F O I L
62.
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F O I L
64.
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Calculator check:
F O I L
66.
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Calculator check:
p. 429: F O I L
70.
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Calculator check:
F O I L
78.
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Calculator check:
Extra Problem by Huossam from ______ F O I L
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Calculator check:
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