Question number 10 math problam (Y= -3x^2 -6x -8)

y = -3x*2 -6x -8

= -3(x^2 + 2x +1) +3 -8 note change of sign; 1 is the square of half the x coefficient

(( = -3 (x +1)^2 -5 Now in vertex form with maximum -5 at x= -1 ))

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