Answered

Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Connect with professionals ready to provide precise answers to your questions on our comprehensive Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

completing the square
x^2 -2x -43=5

Sagot :

naǫ
[tex]x^2-2x-43=5 \\ x^2-2x+1-1-43=5 \\ (x-1)^2-44=5 \\ (x-1)^2=49 \\ \sqrt{(x-1)^2}=\sqrt{49} \\ |x-1|=7 \\ x-1=7 \ \lor \ x-1=-7 \\ x=8 \ \lor \ x=-6 \\ \boxed{x=-6 \hbox{ or } x=8}[/tex]
Panoyin
x² - 2x - 43 = 5
             - 5  - 5
x² - 2x - 48 = 0
x = -(-2) +/- √((-2)² - 4(1)(-48))
                        2(1)
x = 2 +/- √(4 + 192)
                   2
x = 2 +/- √(196)
               2
x = 2 +/- 14
            2
x = 1 +/- 7
x = 1 + 7   ∨   x = 1 - 7
x = 8         ∨   x = -6
Thanks for using our platform. We're always here to provide accurate and up-to-date answers to all your queries. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Westonci.ca is your go-to source for reliable answers. Return soon for more expert insights.