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Find the changes in the sign of the foll...

Find the changes in the sign of the following expressions and find their extreme values.
`15+4x-3x^(2)`

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The correct Answer is:
`15+4x-3x^(2)" is "(49)/(3)`
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-QUADRATIC EXPRESSIONS-TEXTUAL EXERCISES
  1. For what values of x, the following expressions are negative ? x^(2)...

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  2. Find the changes in the sign of the following expressions and find the...

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  3. Find the changes in the sign of the following expressions and find the...

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  4. Find the maximum or minimum of the following expressions as x varies o...

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  5. Find the maximum or minimum of the following expressions as x varies o...

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  6. Find the maximum or minimum of the following expressions as x varies o...

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  7. Determine the range of the following expressions. (x^(2)+x+1)/(x^(2)...

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  8. Determine the range of the following expressions. (x+2)/(2x^(2)+3x+6...

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  9. Determine the range of the following expressions. ((x-1)(x+2))/(x+3)

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  10. Determine the range of the following expressions. (2x^(2)-6x+5)/(x^(...

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  11. If the expressions (x-p)/(x^(2)-3x+2) takes all real value for x in R,...

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  12. If c^(2) ne ab and the roots of (c^(2)-ab)x^(2)-2(a^(2)-bc)x+(b^(2)-ac...

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  13. Solve the following inequations by algebraic method. 15x^(2)+4x-4 le...

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  14. Solve the following inequations by algebraic method. x^(2)-2x+1 lt 0

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  15. Solve the following inequations by algebraic method. 2-3x-2x^(2) ge ...

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  16. Solve the following inequations by algebraic method. x^(2)-4x-21 ge ...

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  17. Solve the following inequations by graphical method. x^(2)-7x+6 gt0

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  18. Solve the following inequations by graphical method. 4-x^(2) gt0

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  19. Solve the following inequations by graphical method. 15x^(2)+4x-4 le...

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  20. Solve the following inequations by graphical method. x^(2)-4x-21 ge ...

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