Question
Use inspection to solve the equation x2=81 , then select the complete solution set below. If there are no real solutions, select “There are no real solutions.”(1 point) Responses {9} left brace 9 right brace There are no real solutions. There are no real solutions. {−9,9} left brace negative 9 comma 9 right brace {−9}
Answers
Answered by
GPT 3.5
To solve the equation x^2 = 81, we take the square root of both sides of the equation.
√(x^2) = ±√81
Since the square root of a number is non-negative, we can simplify this to:
x = ±9
Therefore, the complete solution set is {−9, 9}.
√(x^2) = ±√81
Since the square root of a number is non-negative, we can simplify this to:
x = ±9
Therefore, the complete solution set is {−9, 9}.
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