Question

t TestTest Review Active1112 1314cha wrote the quadratic equation 0=-x²+4x-7 in standard form. If a = -1, what is the value of c in her equation?c=-7C=-115

Answer 1

Answer: The standard form of the quadratic equation in root form is:

$Ax^2+Bx+C=0\Rightarrow(1)$

By comparing the provided equation with the standard form or equation (1) we get the following answer:

$\begin{gathered} \begin{equation*} Ax^2+Bx+C=0 \end{equation*} \\ \\ -x^2+4x-7=0 \\ \\ \\ A=-1 \\ \\ B=4 \\ \\ C=-7 \end{gathered}$

Therefore the answer is:

$C=-7$