Question

Solve 2x2 + 16x + 27 = 0 by completing the square.

Answer 1

@welshfella

Answer 2

I got

x equals negative four plus or minus square root of start fraction five over two end fraction end square root

Answer 3

First divide everything by 2 to get the x^2 by itself

Answer 4

is my answer right?

Answer 5

first divide through by 2

x^2 + 8x + 27/2= 0

(x + 4)^2 - 16 + 13.5 = 0

(x+ 4)^2 = 2.5

x + 4 = +/- sqrt2.5

Answer 6

x = -4 +/- sqrt2.5

Answer 7

yes you are right ( 5/2 = 2.5)