Question 1168984
.
<pre>

From the condition, you have this equation


    (40-x)*(70-x) = 40*70 - 650.


Reduce it to the standard form quadratic equation and solve.


    x^2 - 110x + 650 = 0


Solve using the quadratic formula


    {{{x[1,2]}}} = {{{(110 +- sqrt(110^2 - 4*650))/2}}} = {{{(110 +- 97.468)/2}}}


The only root which makes sense is  x= {{{(110 - 97.468)/2}}} = 6.266 meters.    <U>ANSWER</U>
</pre>

Solved.


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If you want to see many other similar solved problems, look into the lessons

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in this site.


Also, &nbsp;you have this free of charge online textbook in ALGEBRA-I in this site

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson>ALGEBRA-I - YOUR ONLINE TEXTBOOK</A>.


The referred lesson is the part of this online textbook under the topic 
"<U>Dimensions and the area of rectangles and circles and their elements</U>".


Save the link to this online textbook together with its description


Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson


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