I think of a number.
If I subtract 20 from my number, then square the result,
I get the same answer as
if I square my number, then subtract 20 from the result.
What is my number?
You must show an algebraic method (use letter x in your working).

Question

02-11-2022
Mathematics

Answered

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I think of a number.
If I subtract 20 from my number, then square the result,
I get the same answer as
if I square my number, then subtract 20 from the result.
What is my number?
You must show an algebraic method (use letter x in your working).

Sagot :

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