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SAT Math 1.5 Algebra and Functions. If f (x) = x2 - 16 and g(x) = x4 - 256, what is f of x divided by g of x?
ACT Math Intermediate Algebra Drill 1, Problem 5. Can you simplify the expression?
ACT Math Intermediate Algebra Drill 2, Problem 1. Solve the equation.
ACT Math 1.2 Elementary Algebra 272 Views
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Description:
ACT Math: Elementary Algebra Drill 1, Problem 2. Can you simplify the expression?
- Elementary Algebra / Simplifying expressions
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Spanish Subtitled
- Foreign Language / Chinese Subtitled
- Foreign Language / Korean Subtitled
- Algebra / Use polynomial identities to solve problem
- Algebra / Use polynomial identities to solve problems
- Elementary Algebra / Understanding algebraic operations
Transcript
- 00:03
Here's your shmoop du jour... extra crackers...free. Simplify: 5y plus 2z plus 3x squared minus
- 00:11
the quantity 2y minus 2z plus 4x And here are the potential answers...
- 00:19
OK so what is this question asking?
- 00:23
Well, this one is really just a gnarly simplification problem. So... put on your simplifyin' pants.
- 00:32
If we take them one by one, we have a positive 3x squared which we'll just leave as is
Full Transcript
- 00:36
-- not much we can do to simplify it.
- 00:41
Which incidentally takes out D and E as options.
- 00:44
So now distribute this negative sign and rewrite the problem and we have
- 00:48
3x squared plus 5y plus 2z minus 2y PLUS 2z minus 4x.
- 00:55
Now we can combine like terms to get 3x squared plus 3y plus 4z minus 4x...
- 01:01
...so the answer is C.
- 01:03
As in, "Can't believe it's not butter."
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