Question

known for their artistic weaving ability, the diné (commonly known as navajo) create durable blankets with vivid patterns. the quadratic expression ((x + 2)^2 - 4) is one way to represent the area of a rectangular diné blanket, where (x) represents the width of the blanket, in feet. a partially complete equivalent form of the quadratic expression is shown below. determine the equivalent form of the expression. then, use the drop - down menus to explain the meaning of the equivalent form. equivalent form: (x(square)) click the arrows to choose an answer from each menu. the completed equivalent form of the quadratic expression is choose... this equivalent form represents choose... of the blanket. the width of the blanket is choose... and the length is choose... the width.

Explanation:

Step1: Expand the expression

Use the formula \((a + b)^2=a^{2}+2ab + b^{2}\) to expand \((x + 2)^2\).
\((x + 2)^2=x^{2}+4x + 4\). Then \((x + 2)^2-4=x^{2}+4x+4 - 4=x^{2}+4x\).

Step2: Factor the expression

Factor out the common factor \(x\) from \(x^{2}+4x\).
\(x^{2}+4x=x(x + 4)\)

Answer:

The completed equivalent form of the quadratic expression is \(x(x + 4)\). This equivalent form represents the area formula (\(A=\text{length}\times\text{width}\)) of the blanket. The width of the blanket is \(x\) and the length is \(x + 4\) (4 more than) the width.