Question

Alessandro wrote the quadratic equation –6 = x2 + 4x – 1 in standard form. What is the value of c in his new equation?

Answer 1

\[ax^{2}+bx+c \] c is the last term in the quadratic equation.

Answer 2

Your equation must be in this form:

\[ax^{2}+bx+c = 0 \]


\[-6 = x^{2}+4x-1\]

all you need to do is to add 6 to both sides.

\[0 = x^{2}+4x-1+6\]

Answer 3

would c be 5?

Answer 4

yes, do you see how I did it?