Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (anonymous):

solutions? I DONT GET IT :I x2 - 8x + 16 = 11

OpenStudy (anonymous):

you want to get a quadratic in the form ax^2+bx+c=0 to solve for x

OpenStudy (anonymous):

can you rewrite is in this way?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

si its x^2+8c+16-11

OpenStudy (anonymous):

simplified is?

OpenStudy (anonymous):

its x^2-8x+5=0

OpenStudy (anonymous):

Use quadratic formula \[x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

OpenStudy (anonymous):

.....

OpenStudy (anonymous):

a=1, b=-8, c=5

OpenStudy (anonymous):

so just plug in all numbers into the formula thing

OpenStudy (anonymous):

right

OpenStudy (anonymous):

alright i got it thank you.

OpenStudy (anonymous):

yw

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!