siimeon42
siimeon42 siimeon42
  • 01-02-2016
  • Mathematics
contestada

xsquared + 3x - 5 solved using the quadratic formula

Respuesta :

unicorn3125
unicorn3125 unicorn3125
  • 01-02-2016
[tex]x^2+3x-5=0\\a=1;\ b=3;\ c=-5\\\\ x=\frac{-b^+_-\sqrt{b^2-4ac}}{2a}\\\\x=\frac{-3+\sqrt{3^2-4\cdot1\cdot(-5)}}{2\cdot1}\quad\vee\quad x=\frac{-3-\sqrt{3^2-4\cdot1\cdot(-5)}}{2}\\\\x=\frac{-3+\sqrt{9+20}}{2}\quad\vee\quad x=\frac{-3-\sqrt{9+20}}{2}\\\\x=\frac{-3+\sqrt{29}}{2}\quad\vee\quad x=\frac{-3-\sqrt{29}}{2} \\\\x\approx1.19\quad\vee\quad x\approx-4.19[/tex]
Answer Link

Otras preguntas

Find the first ten prime numbers tell how you do it
Devin has 32 books to pack in boxes she packs eight books in each box. how many boxes does she need? write an equation using the letter n to stand for the unkno
which ineqality is true for all values x
In which sentence is the subjunctive mood correctly used? He listens to instructions very carefully when at work. If she were impatient, she would not be suited
11 is 40% of whst number
is the LMC of a pair of numbers ever less than both numbers? (answer quick please)
Bolting ships together rather than welding them was an innovation in shipbuilding that proved to be successful for the American Navy. true or false
which president Supported the creation of the environment protection agency
Jeff drinks 2/3 of a glass of juice. which fraction is equivalent to 2/3?
The plot of a novel should contain which of these? Select all that apply. ordered incidents series of interrelated actions conflict focus on character