liljomarionsmith2006 liljomarionsmith2006

24-03-2021
English

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A school is building a rectangular soccer field that has a n area of 200 square yards. The equation (x-5)(x+5)=200 represents the side length of the field solve for x

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kasiaeriver kasiaeriver

24-03-2021

Answer:

15

Explanation:

(x-5)(x+5)=200

FOIL Method (First, Outer, Inner, Last)

x^2-5x+5x-25=200

combine like terms

x^2-25=200

add 25 to both sides

x^2 = 225

Take the square root of both sides

x=15

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