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Solve the quadratic equation by completing the square.
x2 + 6x + 7 = 0
a:36+squareroot2
b:3+squareroot11
c:3+sqaueroot2
 one year ago
 one year ago
Solve the quadratic equation by completing the square. x2 + 6x + 7 = 0 a:36+squareroot2 b:3+squareroot11 c:3+sqaueroot2
 one year ago
 one year ago

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timo86mBest ResponseYou've already chosen the best response.0
(x+3)^22 = 0 Can you do the rest?
 one year ago

RudyBest ResponseYou've already chosen the best response.0
1. Move the number to the opposite side of the equal sign. x2+6x=7 2. The term with the x, divide in half, then square it. 6/2=3 3^2=9 3. Add that number on both sides of the equation. x2+6x+9=7+9 4. Solve the perfect square (x+3)^2=2 5. Take the square root on both sides of the equation x+3=+sqrt(2) 6. Equal the term on the left to the positive and negative roots. Since it's only one term, it's only a matter of solving for x x=3+sqrt(2)
 one year ago
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