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this text goes with this question: Francesca wants to glue this 3-inch by 5-inch photo on top of a mat that will increase the length of each side by another x inches. Find an expression representing the area of the mat and use this expression to find the area and cost of the mat for different values of x. i need help on question #6.

this text goes with this question Francesca wants to glue this 3inch by 5inch photo on top of a mat that will increase the length of each side by another x inch class=

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As given that:

Francesca wants to glue this 3-inch by 5-inch photo on top of a mat that will increase the length of each side by another x inches.

So the one side increase by 3+2x

And the second side as 5+2x

So the area is:

[tex]\begin{gathered} A=(3+2x)(5+2x) \\ A=15+6x+10x+4x^2 \\ A=4x^2+16x+15 \end{gathered}[/tex]

So the expression for area is:

[tex]A=4x^2+16x+15[/tex]

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