Question

3. Multiply and combine like terms: (x^2 - 4x + 7)(x + 3) . 4. Combine and simplify, using positive exponents only: (-4a^-2b^3)^-3(8ab)^2 5. Write .00000000405 in scientific notation. 6. Factor completely: 24x^4 - 54x^8 . 7. Solve for x. Leave your answer in radical form: x^2 - 4x = 3. 8. Combine into a single fraction: (x + 6) / (x^2 + x - 20) - 3 / (x - 4) 9. Divide and simplify your answer: ((x^2 + x - 6) / (10x^2)) ÷ ((x^2 - 9) / (2x^8)) 10. Simplify: (1/x^2 + 5/x + 6) / (2x + 1) 11. Solve for x: 125^x = 25^(x + 2) 12. If f(x) = 3x - x^2, find the value of f(-3).

          3. Multiply and combine like terms: (x^2 - 4x + 7)(x + 3) .
4. Combine and simplify, using positive exponents only: (-4a^-2b^3)^-3(8ab)^2
5. Write .00000000405 in scientific notation.
6. Factor completely: 24x^4 - 54x^8 .
7. Solve for x. Leave your answer in radical form: x^2 - 4x = 3.
8. Combine into a single fraction: (x + 6) / (x^2 + x - 20) - 3 / (x - 4)
9. Divide and simplify your answer: ((x^2 + x - 6) / (10x^2)) ÷ ((x^2 - 9) / (2x^8))
10. Simplify: (1/x^2 + 5/x + 6) / (2x + 1)
11. Solve for x: 125^x = 25^(x + 2)
12. If f(x) = 3x - x^2, find the value of f(-3).

$3. Multiply and combine like terms: (x^2 - 4x + 7)(x + 3) . 4. Combine and simplify, using positive exponents only: (-4a^-2b^3)^-3(8ab)^2 5. Write .00000000405 in scientific notation. 6. Factor completely: 24x^4 - 54x^8 . 7. Solve for x. Leave your answer in radical form: x^2 - 4x = 3. 8. Combine into a single fraction: (x + 6) / (x^2 + x - 20) - 3 / (x - 4) 9. Divide and simplify your answer: ((x^2 + x - 6) / (10x^2)) ÷ ((x^2 - 9) / (2x^8)) 10. Simplify: (1/x^2 + 5/x + 6) / (2x + 1) 11. Solve for x: 125^x = 25^(x + 2) 12. If f(x) = 3x - x^2, find the value of f(-3).$

Added by Robin T.

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