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

ANSWER

EXPLANATION

A quadratic equation is said to be in standard form when it is in the form

where a, b, c are real numbers.

The given quadratic equation is

When we add 6 to both sides, we obtain,

Or

This is what Alexandra got after he wrote the quadratic equation in standard form.

By comparing this equation to

we have a=1, b=4 and c=5.

a

step-by-step explanation:

the answer is a