Solve the Quadratic Equation a^2+3=12, algebra problem help

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Solve the Quadratic Equation problem .. please show steps

a^2+3=12

Jan 13th, 2016

Hello!

Subtract 3 from both sides:

a^2 = 12-3 = 9 = 3^2.

a^2 = 3^2 means a=3 or a=-3 (two solutions).

Please ask if something is unclear.
Jan 13th, 2016

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Jan 13th, 2016
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Jan 13th, 2016
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