Quadratic or Not Quadratic? Identify which of the following equations are quadratic and which are n and NO if not. 1. x-5x + 10 = 0 2. 3x -4 =0 3. (x+2)=0 4. 3y =9 6. 25 -r= Sr 7. z-8 = 22 8. x = 9x -13 9. ( 2t -1)(t+5)= 0 10. (8- 10n )(8 + 10n) 5. 5x 1

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