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Posted over 1 year ago

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I have absolutely NO idea how to complete the square. I tried googling it and using various different websites; i tried asking my friends and my math teacher too but it is quite pointless. My math teacher at school cannot teach and I'm stuck feeling lost and confused every single lesson. Luckily I go tuition but I won't be in tuition for another two weeks so please help me figure out how to do the completing square method. 

One question that came up was

x squared - 9x = 7


Posted over 1 year ago

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Posts: 77

i think one of the values is incorrect 


Posted over 1 year ago

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"wat12IF" wrote:

i think one of the values is incorrect 


No it is possible to work out the answer, I just don't understand what the answer is and how you get to it. 


Posted about 1 year ago

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EASYPEASY ! x squared - 9x = 7
Setit equal to zero... sub 7
x^2 - 9x - 7 = 0

NOW USE THE QUADRATIC FORMULA TO SOLVE
x^2 - 9x - 7 = 0
A= 1
B= -9
C= -7 

~Shaggy~ ~The Truth Keeper~

Favorite Quotes:
"All that we see or seem is but a dream within a dream" - Edgar Allen Poe


Posted about 1 year ago

Posted By:

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Google a quadratic calculator for the rest

~Shaggy~ ~The Truth Keeper~

Favorite Quotes:
"All that we see or seem is but a dream within a dream" - Edgar Allen Poe


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