Algebraic Techniques, SM-Bank 132

The rectangle below has a length of \((3+\large b)\) and a width of 4.

Write an algebraic expression and expand it to represent the area of the rectangle. (2 marks)

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\(12+4b\)

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\(4(3+b)\)	\(=4\times 3+4\times b\)
	\(=12+4b\)