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mason133 mason133
  • 19-04-2016
  • Mathematics
Answered

Find the value or values of y in the quadratic equation y2 + 4y + 4 = 7.

Verified Answer :

W0lf93
W0lf93 W0lf93
  • 13-05-2017

If we move 7 to one side, we have (y^2 + 4y -3) = 0. From this form, we can apply the quadrati formula to solve for the values of y.

To recall, quadratic formula is [ -b ±√ (b² - 4ac) ]/2a.

For our equation, we have a =1, b = 4, and c = -3. If we plug this in, we have y to have approximate values of -2 - sqrt(7) and -2 + sqrt(7).

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