TRUEBOSS72 TRUEBOSS72

01-05-2018
Mathematics

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Please help me with this

Please help me with this class=

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mkryukova19 mkryukova19

01-05-2018

y=3(x²+10x)+71
Now we need to complete square for (x²+10)
It should look like this
a²+2ab+b²=(a+b)²

y=3(x²+2*5x+5²)-3*5²+71
y=3(x+5)²-75+71
y=3(x+5)²-4
Vertex has coordinates x=-5, y=-4.
Vertex in this case is the extreme value (-5,-4)

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