BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.5, Problem 76E
To determine

Find the real solutions of equation.

Expert Solution

Answer to Problem 76E

  x=5+132,x=5132

Explanation of Solution

Given information:

  z2+5z+3=0

Formula used: -

  x=b±b24ac2a

  z2+5z+3=0

Now applying quadratic formula:

  x=b±b24ac2a In equation z2+5z+3=0

Here a=1,b=5,c=3

  z=(5)±(5)24(1)(3)2(1)z=5±25122z=5±132

  x=5+132,x=5132

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