Question

5. A number is squared, then multiplied by 6. The result is 54. What was the number? Answer:

Answer 1

Answer:

± 3

Step-by-step explanation:

let n be the number then the number squared is n² , so

6n² = 54 ( divide both sides by 6 )

n² = 9 ( take the square root of both sides )

n = ± $\sqrt{9}$ = ± 3

That is the number is 3 or - 3