yagurllexi
yagurllexi yagurllexi
  • 02-10-2017
  • Mathematics
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If you could.. please explain this to me on how to convert this equation.. I would be very thankful.

If you could please explain this to me on how to convert this equation I would be very thankful class=

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Аноним Аноним
  • 02-10-2017
y = -2(x + 3)^2 - 4

First expand the parentheses:-

y = -2(x + 3)(x + 3) - 4

y = -2 [(x(x + 3) + 3(x + 3)] - 4

y =  -2 ( x^2 + 3x + 3x + 9) - 4

y = -2(x^2 + 6x + 9) - 4

Now distribute the -2 over the parentheses:-

y = -2x^2 - 12x - 18 - 4

y = -2x^2 - 12x - 22   Answer
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