Wednesday

October 22, 2014

October 22, 2014

Posted by **jasmine20** on Sunday, April 22, 2007 at 1:29am.

Problem #1

solve by completing the square.

2x^2+8x+3=0

My answer: x=-2 +/- sqrt (5)/(2)

Problem #2

solve by using the quadratic formula

5x^2+3x+1=0

My answer: No solution are defined.

You are not completing the square.

2x^2+8x+3=0

x^2 + 4x =- 3/2 now complete the square..

x^2 + 4x + 4 =- 3/2 + 4

(x+2)^2= ( sqrt (2.5))^2

x+2 = +- sqrt 2.5

to your answer above now.

isn't this the same answer as what i have

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