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A^2 - 36 = 0

Solve for A

1 Answer

6 votes

Answer: -6 and 6

Explanation:

a^2 - 36 = 0

add 36 to both sides

a^2 = 36

square root both sides to get rid of the exponent on the a.

√a^2 = √36

the a^2 and √ cancel out, leaving a = √36

since you squared both sides, the √36 must be +/-

√36 = 6

final solution:

a = +/- 6

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