Question

The quadratic formula can be used to solve an equation only if the highest

degree in the equation is
A. 2
B. 1
O c. 3
O D.O

Answer 1

A. 2

Explanation:

The quadratic formula is:

`$x=(-b\pm √(b^2-4ac))/(2a)$`

An equation of the form
`ax^2+bx+c=0` is only quadratic when
`a \\eq 0`, therefore it is linear.

Also, by definition, a quadratic equation is an equation where the highest exponent is a square.

Answer 2

A

Explanation:

`x = ((-b +/- (b^2 - 4ac)) / 2a`

The degree in the equation is 2.

The quadratic formula can be used to solve an equation only if the highest degree in the equation is 2.