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For questions 10-12 solve each equation using the quadratic formula. 10. 3x2+5x-7=0 11. x2=8x-3 12. (2x + 1)(x-5)=-3 For questions 13-15 determine the number

 

For questions 10-12 solve each equation using the quadratic formula. 10. 3x2+5x-7=0 11. x2=8x-3 12. (2x + 1)(x-5)=-3 For questions 13-15 determine the number of real solutions to each equation. Do not solve the equation. 13. 4x2-24x=-36 14. x2-5x+8=0 15. 2x2 = 13x+5 Section 9.4 Solve each equation by using substitution to transform it into a quadratic equation. 16. x4 4x2-2=0 17.x 4x=1 18. 2x-2-5x-1= 3

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