Complete the square: x^2 -12x. Which of the following is the correct perfect-square trinomial?
the answers are:
a.) x^2 +22x+121
b.) x^2 -10x+25
c.) x^2 -20x+44
d.) x^2 -12x+36
This is tough because the answers could be a.) b.) and d.)
I am not sure which to choose.
Please take a look at my work and let me know if I made any mistakes. You don't have to give me the answers. I'd just like to know if I made any mistakes so that I can correct them. Thanks! 1. 3x – 7 = 8 + 7 +7 3x = 15 3 3 x=5 2. …
Is this trinomial a perfect square x^2-6x+9 if the trinomial starts with x^2 and 1/2 of the middle term coefficient squared equals the last term, then it is a perfect square. tell me what you found. i thought it was not a perfect square. …