X²-81=0 quadratic equation using appropriate method
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X²-81=0 quadratic equation using appropriate method
X²-81=0 quadratic equation using appropriate method
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Answer:
-9 and 9
Step-by-step explanation:
x^2-81+81=0+81
x^2=81
√x^2=√81
x=9
x=-9
Answer:
Step-by-step explanation: