Determine the value of k for trinomial to be a perfect square

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CORRECTION: For the first trinomial k = -12 and 12
Both should have been mentioned
Thanks to Subscriber for pointing out.
product of sum and difference is difference of squares. Perfect square of a binomial is a trinomial. Many questions involve finding the value of unknown in the trinomial to make it a perfect square.
#anilkumar #GlobalMathInstitute #GCSE #SAT #SpecialProducts #differenceofsquares #perfectsquare #mpm2d #FactorTrinomials #ExpandPolynomials #simplifyPolynomials
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This helped so much. I actually understand this topic now. thank you!!!

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Omg this was actually so helpful, especially since the first one was legit in my math textbook and was the question I needed... so that was amazing thank you!

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emmakrose
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kianafilippetto
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Thank you so much Sir
I watched many videos about this topic but this is the only video that actually helped me

i__daour
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The description says k=-12 and 12, Im still stuck on it till now🤣

cqgod
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Also one last question you know the second problem and it was -2(3x) why wasnt it -6x?

nf.nights
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What will happen if. At the place of 9 ..we dont have perfect square..

jasmeenkaur
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my problem is 3x^2 +42x+m I cannot solve it with 3 to find value of m? can you help please?

jennynguyen
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I dont really understand the second problem you mind explaining it

nf.nights
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what if the missing "k" is the coefficient of x² ?

tutstorial