Suppose you are given a Rectangular piece of cardboard having length 3x-7 inches and width 5x+2 inches. Then you cut out a square from this piece of cardboard having side length x inches. Find the area of the remaining piece of cardboard expressed in terms of x. Please provide steps in detail and how you are thinking to get to a solution.  Thank you

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Q: what is the square footage of a room 13x 15?

A: what is the square footage of a room 13×15 ? square footage or area of room= length×width

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.