LisnblEilee9Ke LisnblEilee9Ke
  • 28-03-2017
  • Mathematics
contestada

Plz Help
Solve for x.

Use the completing the square method.

4x² + 2x = 7

Round decimals to the nearest tenth.

Enter your answers in the boxes.
x = or x=

Respuesta :

meerkat18
meerkat18 meerkat18
  • 09-04-2017
we are asked in the problem to determine the value of x in the equation 4x² + 2x = 7 using completing the square method. in this case,

4x² + 2x = 7 
x2 + 0.5 = 1.75
(x + 0.25)^2 - 0.0625 = 1.75
(x + 0.25)^2 = 1.8125
x+0.25=1.3462
x1 =1.0963
x2 =-1.5962
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