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

 Apr 26, 2021
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4(x + 7)(2 - x) + (2 - x)

(2-x)(4(x + 7)+1)

(2-x)(4x+29)

Now, it's a quadratic, and we're looking for the vertex. 

Can you solve it from here?

 

=^._.^=

 Apr 26, 2021

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