This is the first time I've ever asked for help here, but this stuff is annoying. And I have a test tomorrow. I'm going to use / for a fraction line, alright?
If I have 4 times the square root of 3 multiplied by the square root of 21, what do I do? I know that..say, the square root of six times the square root of 15 is the square root of 90, and I have to simplify it down from there. I HAVE to make a 100 on that test tomorrow to pull my grade up high enough to offset the bad one I made last 9 weeks. I have a 95 or so now. If I make a 100 here, I should have a 97, which will pull up my 82 to a 90 for the semester.
Algebra II - Factoring and Imaginary Numbers
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Algebra II - Factoring and Imaginary Numbers
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[color="Red"]Distance is to Love as Wind is to Fire...it extinguishes the small, and ignites the great. - Unknown[/color]
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Destroyer2000 - Posts: 1756
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You have 4*sqrt(3)*sqrt(21), which is 4*sqrt(3)*sqrt(3*7). Remembering the properties of the sqrt operator, this gives us 4*sqrt(3*3*7), which is 4*3*sqrt(7). The simplified expression is thus 12*sqrt(7).
The scientific method," Thomas Henry Huxley once wrote, "is nothing but the normal working of the human mind." That is to say, when the mind is working; that is to say further, when it is engaged in corrrecting its mistakes. Taking this point of view, we may conclude that science is not physics, biology, or chemistry—is not even a "subject"—but a moral imperative drawn from a larger narrative whose purpose is to give perspective, balance, and humility to learning.
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Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge
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Neil Postman
(The End of Education)
Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge
Isaac Aasimov
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Technomancer - Posts: 2379
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