Question

Solve x 2 - x - 5/2 = 0 using the quadratic formula.

Answer 1

your answer would be: x=1±√11 all divided by 2

Hope this helps

~QueenSupreme AKA Trinity

Answer 2

Answer:
`\bold{(1\pm √(11))/(2)}`

Explanation:

`x^2-x-(5)/(2)=0\quad \text{multiply by 2 to get:}\\\\2x^2-2x-5=0\quad \rightarrow \quad a=2,\ b=-2,\ c=-5\\\\\text{Quadratic formula is: }x=(-b\pm √(b^2-4ac))/(2a)\\\\\\x=(-(-2)\pm √((-2)^2-4(2)(-5)))/(2(2))\\\\\\.\ =(2\pm √(40))/(2(2))\\\\\\.\ =(2\pm √(44))/(2(2))\\\\\\.\ =(2\pm 2√(11))/(2(2))\\\\\\.\ =\boxed{(1\pm √(11))/(2)}`