# math

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Please explain how to set this up and how to solve:

A school's rectangular athletic fields currently have a length of 125 yd and a width of 75 yd. the school plans to expand both the length and the width of the fields by x yards. What polynomial is standard form represents the area of the expanded athletic field?

• math -

A = Area

L = Lenght

W = Width

New lenght L = 125 + x

New width W = 75 + x

A = W * L

A = ( 125 + x ) * ( 75 + x )

A = 75 * 125 + 75 * x + x * 125 + x * x

A = 9375 + 75 x + 125 x + x ^ 2

A = x ^ 2 + 200 x + 9375

• math -

(x+125)(x+75) = Area

• math -

I loved the way you broke it down and explained it to me in detail. What a great help!

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