Question

if the sum of the square of a number and the square of its double is 180. find the number​

Answer 1

Answer:

184 is a correct answers

Answer 2

Step-by-step explanation:

Let the number be x.

Given,

Square of x = x²

Double of x = 2x

Square of 2x = 2x²

ATQ,

x² + 2x² = 180

3x² = 180

3x²/3 = 180/3

x² = 60

x = ±√60

x = 2√15 OR x = −2√15

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