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The surface area of the rectangular prism can be found using the expression 6x exponent 3 + 4x exponent 2 + 12x. if the value of x is 3, what is the surface area, in square centimeters of the prism?

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Answer:

234 cm²

Explanation:

Given expression to represent the surface area of the rectangular prism is
6x^(3) +4x^(2) +12x

The given value of x is 3.

Now, finding value of expression by sustituting value of "x" as given.

Surface area of the rectangular prism =
6x^(3) +4x^(2) +12x

Surface area of the rectangular prism=
6* 3^(3) +4* 3^(2) +12* 3

∴ Surface area of the rectangular prism=
6* 27+ 4* 9+ 12* 3

Surface area of the rectangular prism=
162+36+36= 234\ cm^(2)

Surface area of the rectangular prism= 234 cm²

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