Question 206897This question is from textbook Elementary and Intermediate
: y2(squared)=3y-5
This question is from textbook Elementary and Intermediate
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! y^2 = 3y -5
y^2 - 3y +5 =0
use quadratic formula to factor
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a=1,,,,b=-3,,,,c=5
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y=[ -(-3) +/- sqrt{(-3)^2 -4(1)(5)}] /2(1)
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y=[3 +/- sqrt{ 9-20} ] /2
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y= [3+/- 3.32 i ] /2
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y=1.5 +/- 1.658 i ,,,,,,answer
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to check insert in original eqn
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(1.5 = 1.658i)^2 = 3(1.5 +1.658i) -5
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.25 -2*1.658 *1.5 i +2.75 i^2 = 3(1.5 +1.658i)-5
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2.25 +4.975i -2,75 = 4.5 +4.975i -5
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-.5 = -.5,,,,,,,,ok
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