SOLUTION: Multiply:
(√[3] + 4√[5])(2√[3] – √[5])
Can you please assit me in answering this problem. I tried working ot out but it seems to be getting more confusi
Algebra ->
Square-cubic-other-roots
-> SOLUTION: Multiply:
(√[3] + 4√[5])(2√[3] – √[5])
Can you please assit me in answering this problem. I tried working ot out but it seems to be getting more confusi
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Question 63374This question is from textbook intermediate algebra
: Multiply:
(√[3] + 4√[5])(2√[3] – √[5])
Can you please assit me in answering this problem. I tried working ot out but it seems to be getting more confusing. I tried using the foil method was I right to start there? But I got lost in the process of figuring this out. If possible can you show the steps in order to complete. This question is from textbook intermediate algebra
You can put this solution on YOUR website! (√[3] + 4√[5]) * (2√[3] – √[5])
Use FOIL:
F: (sqrt3)(2sqrt3)=6
O: (sqrt3)(-sqrt5)=-sqrt15
I: (4sqrt5)(2sqrt3)=8sqrt15
L: (4sqrt5)(-sqrt5)=-20
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Add them up to get:
-14+7sqrt15
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Cheers,
Stan H.
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