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