Arectangular frame has a length of (x+2) and a width of (x-4). if the area is 7 what is the value of x

x=5/-3

Step-by-step explanation:

(x+2)(x-4) = 7

FOIL

 - 2x - 8= 7

Subtract 7 from both sides

- 2x - 15 = 0

Factor

(x-5)(x+3)

x=5

-3 is extraneous side lengths cannot be negative

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925