Question

1. Find the roots of the following quadratic equations, if they exist, by the me
completing the square:. 2x2 + x -4 = 0​

Answer 1

Answer:

(-1+√33)/4

(-1-√33)/4

Step-by-step explanation:

2x^2+x-4=0

use the formula -b+√(b^2-4ac)/2a,-b-√(b^2-4ac)/2a

b=1,a=2,c=-4

-1+√(1-4(2)(-4))/2(2)

(-1+√33)/4

(-1-√33)/4