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evaluate 3z3z when z=9z=9

Full solution

Q. evaluate 3z3z when z=9z=9
  1. Substitute value of zz: To find the value of 3z3z when zz equals 99, we simply need to substitute the value of zz into the expression 3z3z.\newlineCalculation: 3z=3×93z = 3 \times 9
  2. Perform multiplication: After substituting the value, we perform the multiplication.\newlineCalculation: 3×9=273 \times 9 = 27

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