SOLUTION: Solve by completing the square : 7 = 3x - 2x^2

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Question 65590This question is from textbook An Incremental Development
: Solve by completing the square :
7 = 3x - 2x^2
This question is from textbook An Incremental Development

Answer by funmath(2933)   (Show Source): You can put this solution on YOUR website!
Solve by completing the square :
7 = 3x - 2x^2
Let's change the order, so it looks more like the other problems you've probably been doing:
-2x^2+3x=7
Divide everything by the coefficient of x^2, -2


Multiply the coefficient of x, -(3/2) by 1/2, square it and add it to both sides of the equation. =9/16




<--if you haven't had complex numbers yet, you can stop here and say "no real solution," if you have, keep going:



Happy Calculating!!!

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