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Solve for aa.\newlinea2=9a^2 = 9\newlinea=a = _____ or _____

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Full solution

Q. Solve for aa.\newlinea2=9a^2 = 9\newlinea=a = _____ or _____
  1. Recognize Equation: Recognize the equation a2=9 a^2 = 9 and understand it means a a squared equals 99.
  2. Rewrite to Find a: Rewrite the equation to find a a . Since squaring and square root are inverse operations, apply the square root to both sides: a=±9 a = \pm\sqrt{9} .
  3. Calculate Square Root: Calculate 9 \sqrt{9} . Since 3×3=9 3 \times 3 = 9 , 9=3 \sqrt{9} = 3 . Therefore, a=±3 a = \pm3 .

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