Define quadratic equation and quadratic expression.

 a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term

An expression of the form ax2+bx+c a x 2 + b x + c , where a≠0 a ≠ 0 is called a quadratic expression

quadratic equation= any equation containing one term in which the unknown is squared and no term in which it is raised to a higher power solve for x in the quadratic equation x2 + 4x + 4 = 0.

quadratic sequence=A quadratic expression is an expression involving a squared term, e.g., x2 + 1, or a product term, e.g., 3xy − 2x + 1. A linear expression such as x +1 is obviously non-quadratic. Always simplify the quadratic expression, if possible.

Step-by-step explanation:

the answer is 24

step-by-step explanation:

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b