Question

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Answer 1

Respuesta:

Explicación paso a paso:

y=-3x²-6x-5

y=-3(x²+2x)-5

y+?=-3(x²+2x+?)-5

y+?=-3(x²+2x+1)-5

7-3×1=-3(x²+2x+1)-5

7-3=-3(x²+2x+1)-5

7-3=-3(x+1)²-5

y=-3(x+1)²-5+3

y=-3(x+1)²-2

y=-3(x+1)²-2

y=2x²-12x+17

y=2(x²-6x)+17

y+?=(x²-6x+?)+17

y+?=2(x²-6x+9)+17

y+2×9=2(x²-6x+9)+17

y+18=2(x²-6x+9)+17

y+18=2(x-3)²+17

y=2(x-3)²+17-18

y=2(x-3)²-1

y=x²+18x-15

y+?=x²+18x+?-15

y+?=x²+18x+81-15

y+81=x²+18x+81-15

y+81=(x+9)²-15

y=(x+9)²-15-81

y=(x+9)²-96

y=(x+9)²-96

y=-2x²+2x-5

y=-2(x²-x)-5

y+?=-2(x²-x+?)-5

y+?=-2(x²-x+1/4)-5

y-2×1/4=-2(x²-x+1/4)-5

y-1/2=-2(x²-x+1/4)-5

y-1/2=-2(x-1/2)²-5

y=-2(x-1/2)²-5+1/2

y=-2(x-1/2)²-9/2