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What is the maximum value of 4(x+7)(2-x), over all real numbers ?

 Dec 1, 2020

Best Answer 

 #1
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Multiply thru to get:

-4x^2-20x+56    This is a dome shaped parabola

             max value of 'x' will be at -b/2a   where a = -4 and b = -20

 

when you get this value of 'x' ....put it into the equation to calculate the max vale of the equation

 Dec 1, 2020
 #1
avatar
+1
Best Answer

Multiply thru to get:

-4x^2-20x+56    This is a dome shaped parabola

             max value of 'x' will be at -b/2a   where a = -4 and b = -20

 

when you get this value of 'x' ....put it into the equation to calculate the max vale of the equation

Guest Dec 1, 2020
 #2
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0

if m<1=(7x-19)and m<2=(x+5)find m<2

???

 Dec 1, 2020

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