please number 7 and 13
PROBLEMS 13.4 In Problems 1-14, test for relative maxima and minima. Use the second-derivative test, if possible. In Problems 1-4, state whether the relative extrema are also absolute extrema. 2. y 3x² + 12x + 14 4. y 3x²5x+6 6. y=x³-12x+1 1. y = x – 5tto 3. y=-4x²+2x-8 5. y = x³ + 2x²5x+1 7. y = 2x³-3x²36x+17 9. y=7-214 11. y=81x55x 13. y(x²+7x+10)² 8. y=x²-2x² +4 10. y=-2r7 12. y 15x³+x²15x+2 14. y=-x+3x²+9x-2
please number 7 and 13
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