dmd
Answered

Welcome to Westonci.ca, the ultimate question and answer platform. Get expert answers to your questions quickly and accurately. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

solve with quadratic formula 8x^2-9x-5=0

Sagot :

[tex]8x^{2} - 9x - 5 = 0[/tex]

[tex]x = \frac{-(-9) +/- \sqrt{(-9)^{2} - 4(8)(-5)}}{2(8)} [/tex]

[tex]x = \frac{9 +/- \sqrt{81 + 160}}{16} [/tex]

[tex]x = \frac{9 +/- \sqrt{241}}{16} [/tex]

[tex]x = \frac{9 +/- 15.524}{16} [/tex]

[tex]x = 0.5625 +/- 0.97025[/tex]
[tex]x = 0.5625 + 0.97025[/tex]                                   [tex]x = 0.5625 - 0.97025[/tex]
[tex]x = 1.53275[/tex]                                                  [tex]x = -0.40775[/tex]