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## A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.

student : I have to complete the square of x^2 -4x-33=0
tutorsd6 : find the value of x ?
tutorsd6 : sorry , am not able to understand the problem
tutorsd6 : complete the square of x^2 -4x-33=0 ??????????????
student : Yes.
student : Complete the square.
tutorsd6 : [ x^2 - 4x - 33 ] ^ 2 = [ x^2 ] ^2 + [ -4x ] ^2 + [ - 33]^2 = 2 [ { x^2 * ( - 4x ) } + { ( - 4x ) * ( - 33) } + { ( x^2 ) * ( - 33 ) } ]
tutorsd6 : = x^4 + 4x^2 + 1089 + 2 [ - 4x^3 + 132x - 33x^2 ]
student : Woah. Hold on. Ahah. How did yo udo that?
tutorsd6 : = x^4 + 16x^2 + 1089 - 8x^3 + 264x - 66x^2
tutorsd6 : = x^4 - 8x^3 - 50x^2 + 264x + 1089 ( answer )
student : I.. don't think that's right.
tutorsd6 : formula : ( a + b + c ) ^ 2 = a^2 + b^2 + c^2 + 2 [ a*b + b *c + a * c ]
tutorsd6 : my answer is correct , if you ashed for the square of ( x^2 - 4x - 33 )
student : ...I asked to complete the square.
student : Do you know what completing the square is?
tutorsd6 : is Typing . . . . . . . . . . .

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