karlaantuche08 karlaantuche08

03-10-2019
Mathematics

contestada

Use the quadratic formula to find both solutions to the quadratic equation
given below.
2x2 + x -1 = 0

Respuesta :

devishri1977 devishri1977

03-10-2019

Answer:

Step-by-step explanation:

2x² + x -1 = 0

x² + x² + x -1 = 0

(x² - 1) + x² + x =0

(x + 1) (x - 1) + x(x + 1) =0

(x+1) (x - 1 + x) = 0

(x + 1)(2x - 1) = 0

Answer Link

myvixwkaua myvixwkaua

06-02-2021

Answer: x=1/2 & x=-1

Step-by-step explanation:

Answer Link

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