Q. Find the product. Simplify your answer.(z+2)(z−2)
Apply formula: Apply the difference of squares formula.The expression (z+2)(z−2) is a difference of squares, which can be simplified using the formula a2−b2=(a+b)(a−b), where a=z and b=2.So, (z+2)(z−2)=z2−22.
Calculate squares: Calculate the squares and simplify the expression.Now we calculate z2 and 22.z2 is the square of z, and 22 is the square of 2, which is 4.So, (z+2)(z−2)=z2−4.
Write final form: Write the final simplified form.The final simplified form of the product is z2−4.