SOLUTION: I am 73 years old and have forgotten more about math than I ever used.
Am I correct in saying : X squared + 1 = 10 X = 3
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Question 1021784: I am 73 years old and have forgotten more about math than I ever used.
Am I correct in saying : X squared + 1 = 10 X = 3
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
x^2 + 1 = 10
:
subtract 1 from both sides of =
:
x^2 = 9
:
take square root of both sides of =
:
x = 3 or x = -3
:
note that 3 * 3 = 9 and -3 * -3 = 9, where * means Multiply
:
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