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Help with math problems
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Help with math problems

Help with math problems-example-1
User Pjau
by
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1 Answer

5 votes

Answer:

11, -16 + 12√3

13, 5 - 13√5

Explanation:

11, (-2√3 + 2)(√3 - 5)

=-2√3(√3) - 2√3(-5) + 2√3 - 2(5)

= -16 + 12√3

13, (-2 - 3√5)(5 - √5)

= -2(5) - 2(√-5) - 3√5(5) - 3√5(-√5)

= 5 - 13√5

User Dstibbe
by
7.9k points
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