SOLUTION: hi, my quadratic equation is (x+5)(x+8) =126.75
ive got these steps with help from a friend but as i need to show my working this wont be enough, i struggle with quadratics, what
Algebra.Com
Question 620620: hi, my quadratic equation is (x+5)(x+8) =126.75
ive got these steps with help from a friend but as i need to show my working this wont be enough, i struggle with quadratics, what stages am i missing here?
X^2 + 13X – 86.75 =0
X=4.85782
X=4.85
thanks
Sam
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
hi, my quadratic equation is (x+5)(x+8) =126.75
ive got these steps with help from a friend but as i need to show my working this wont be enough, i struggle with quadratics, what stages am i missing here?
X^2 + 13X – 86.75 =0
X=4.85782
X=4.85
thanks
Sam
You seem to have forgotten about the negative value of x. That's all!!
, with a = 1; b = 13; and c = - 86.75
Using the quadratic equation, we get:
----- ------
, or
, or
, or
Send comments and “thank-yous” to “D” at MathMadEzy@aol.com
RELATED QUESTIONS
Miku and John began biking from the same place on the same road, heading in the same... (answered by scott8148)
I am in serious need of help with quadratic equations. If someone could be so kind as to... (answered by Fombitz)
I attempted to help my friend with her homework but I got stumped by this problem as... (answered by rapaljer)
Please Help. I have a textbook and it takes me through the steps on what I need to do,... (answered by Fombitz)
Hi I need help with a few math problems. I was sick when the teacher gave us the lesson.... (answered by jim_thompson5910)
Hi, I setted up the equation, but when I solved it. It wouldn't work when I plugged it in (answered by htmentor)
Can Someone please help me, I tried to solve this but I not sure of my answer:... (answered by checkley77)
Hi, I need as much help as I could possibly get in understanding how to solve quadratic... (answered by jim_thompson5910,ewatrrr)
The following is the equation I am having difficulty with. I submitted it once before but (answered by checkley71)