Algebra
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1. Express in terms of i:
-sqrt(-297)
2. Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.
8-1/3ax-7/8z^8
3. Simplify. Assume that no radicals were formed by raising negative numbers to even powers.
sqrt(20)k^7q^8
4. Simplify:
(-3a^2)^3
5. Simplify. Do not use negative exponents in your answer.
(2xy)^(-3)
6. Add.
3x^8 + 8x^7 + 6x^6 - 4
5x^8 + 2x^7 + 6x^6 - 8
7. Find the degree of the given polynomial.
-4y^8 - 3x^7z + 4xz^7
8. Multiply.
(m^3n - 9)(m^3n - 5)
9. Perform the indicated operation.
(42k^3 + 12k^2 + 18k) ÷ (6k)
10. Solve the problem. If necessary, round to the nearest tenth.
A car dealer advertised a big sale by stretching a string of banners from the top of the building to the edge of the driveway. If the building is 26 m high and the driveway is 43 m from the building, how long is the string of banners?
11. Factor the expression into a product of two binomials.
5x(3x - 5) + 2(3x - 5)
12. Factor completely. If the polynomial is prime, state this.
75x^2 - 3
13. Factor completely. If the polynomial is prime, state this.
48x^2 + 40xy - 48y^2
14. Factor by grouping, if possible.
x^3 + 3x^2 + 8x + 24
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1. Express in terms of i.
-√-297
Solution: -√297i
2. Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.
8-1/3ax-7/8z8
Solution: 8-1/3ax- 7/(8z^8 )
(The problem is not clearly written. Please send a message re-writing the problem, so that I can update the solution).
3. Simplify. Assume that no radicands were formed by raising negative numbers to even powers.
√20k^7q^8
Solution: √20k^7 q^8 = 2k^3 q^4√5k
4. Simplify. ...
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