# Use the quadratic formula to find the roots of each equation. a. y = 2x 2 + 3x 20 b. y =10x 2 + 13x 3c. R = 250p 2 + 20,000p d. R = 520p 2 + 67,600p

Chapter 9, Application 9.5 #4

Use the quadratic formula to find the roots of each equation.

a. y = 2x^{2 }+ 3x – 20

b. y =10x^{2 }+ 13x – 3

c. R = – 250p^{2 }+ 20,000p

d. R = –520p^{2 }+ 67,600p

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