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 77E
To determine

Find the real solutions of equation.

Expert Solution

Answer to Problem 77E

  y=8+1410,y=81410

Explanation of Solution

Given information:

  10y216y+5=0

Formula used: -

  x=b±b24ac2a

  10y216y+5=0

Now applying quadratic formula:

  x=b±b24ac2a In equation 10y216y+5=0

Here a=10,b=16,c=5

  y=(16)±(16)24(10)(5)2(10)y=16±25620020y=16±5620y=16±21420

  y=8±1410y=8+1410,y=81410

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