Answered

Westonci.ca is the trusted Q&A platform where you can get reliable answers from a community of knowledgeable contributors. Explore thousands of questions and answers from a knowledgeable community of experts on our user-friendly platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

[tex]15 x^{2} +14x-49=0[/tex]

Sagot :

ScreenBlackk
[tex]15x^2+14x-49=0\\\\ Terms:\\ a=15\ \ \ \ b=14\ \ \ \ c=-49\\ Quadratic\ Formula:\\\\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\ x=\dfrac{-14\pm\sqrt{196+2,940}}{30}\\\\ x=\dfrac{-14\pm\sqrt{3,136}}{30}\\\\ x=\dfrac{-14\pm56}{30}[/tex]

[tex]Roots:\\\\ x'=\dfrac{-14+56}{30}\\\\ x'=\dfrac{42}{30}\\\\ x'=\dfrac{21}{15}\\\\ \boxed{x'=\dfrac{7}{5}}\\\\\\\\ x''=\dfrac{-14-56}{30}\\\\ x''=\dfrac{-70}{30}\\\\ \boxed{x''=\dfrac{-7}{3}}[/tex]
Panoyin
15x² + 14 - 49 = 0
x = -(14) +/- √((14)² - 4(15)(-49))
                         2(15)
x = -14 +/- √(196 + 2940)
                     30
x = -14 +/- √(3136)
                 30
x = -14 +/- 56
             30
x = -14 + 56      x = -14 - 56
           30                     30
x = 42               x = -70
      30                      30
x = 1.4              x = 2.33...
Thanks for stopping by. We are committed to providing the best answers for all your questions. See you again soon. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.