Which complex number is equivalent to (5 + 12i) − (9i2 − 6i), where i = −1 ?
1 answer:
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The area of the banner, expressed in simplest form, is: <em>(9 + 3x) ft²</em>
<h3>How to Determine the Area of a Rectangle</h3>- The area of a rectangle = length × width
The banner given in the image below has a rectangular shape. So, the area of the banner will be determined using the area of a rectangle.
- length = (3 + x) ft
- width = 3 ft
Area of the banner = (3 + x)3
Area = (9 + 3x) ft²
Therefore, the area of the banner, expressed in simplest form, is: <em>(9 + 3x) ft²</em>
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