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Mathematics
Jaylen Hancock
15 October, 23:55
Slove this question c^2-81=0
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Alexia Bond
16 October, 00:23
0
To solve a square root, get the ^2 on one side and the 81 on the other side.
add 81 to both sides.
c^2 = 81
to clear the power of 2, take the square root of both sides.
c = + - sqrt81
c = + - 9
c = 9 and c = - 9
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