Question

Consider this equationx^2+1=2x-3Which expression correctly sets up the quadratic formula?

Answer 1

we have the equation

`x^2+1=2x-3`

Rewrite the given equation

`\begin{gathered} x^2+1-2x+3=0 \\ x^2-2x+4=0 \end{gathered}`

where

a=1

b=-2

c=4

substitute in the formula

`x=(-(-2)\pm√(-2^2-4(1)(4)))/(2(1))`

The answer is the option A