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441+a² = 1402
a² = 1402-441
a² = 961
a = √961
a = 31
Respuesta:
el otro número es 31
x² + 441 = 1402
x² =1402 - 441
x²= 961
x = √961
x = 31
Comprobamos:
x² + 21² = 1402
31² + 21²= 1402
961 + 441 = 1402
1402 = 1402
El número es 31.