solve the following quadratic equation , solution in the form

a)

b)

thanks

ps : for a i got completely messed up.

for b i got but the answer from the maths book was

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- Dec 20th 2009, 09:26 AMllkkjj24Completing the square
solve the following quadratic equation , solution in the form

a)

b)

thanks

ps : for a i got completely messed up.

for b i got but the answer from the maths book was - Dec 20th 2009, 09:38 AMKrahl
a)

- Dec 20th 2009, 09:45 AMKrahl
This is the procedure;

and solving this equation for x you get the quadratic formula. - Dec 21st 2009, 09:21 AMllkkjj24
thanks for the help, but i found out that is more easy to just take about the coeffecient of x out as a common factor, complete the sqaure, then just multiply it back in

- Dec 21st 2009, 10:51 PMjgv115
stuffed the question up...

- Dec 21st 2009, 11:00 PMjgv115

Same thing. Take out 2 as a common factor then divide coefficient by 2 and square.

Coefficient divide by 2:

Square:

Now complete the square by dividing the coefficient by 2

Can you do it from here.

Do you understand everything I'm doing?