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Mathematics 11 Online
OpenStudy (anonymous):

Which of the following are solutions to the quadratic equation? x2 + 12x + 36 = 7

OpenStudy (radar):

Take the square root of the left side as it is a perfect square now take the square root of the right side, solve for x.

OpenStudy (anonymous):

???

OpenStudy (radar):

\[x ^{2}+12x+36=y\]\[(x+6)^{2}=7\]

OpenStudy (radar):

Do you now see that the left side is a perfect square whose square root is x+6 ?

OpenStudy (anonymous):

yea please proceed

OpenStudy (radar):

IT Is your problem, I've show you the square root of the left side now make that equal to the square root of the right side. Please write it and post it, so I can see what you're doing.

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