1 Answer

Chrisarton · Answer 1 · 2023-01-30T23:15:37+0000

Answer:

x^2+3x

Explanation:

Area of square/rectangle = l*w

The area for this rectangle = (x)(x+3)

Apply distributive property to get simplest form:

$(x)(x+3)\\x(x+3)\\x^2+3x$

Given x=6:

$6^2+3(6)\\6^2+18\\36+18\\54$

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