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受欢迎的 Word Problems >

the 差集 of two numbers is-8 and the sum of their squares is 50.Find the numbers

解答

t h e d i ff ere n ce o f tw o n u mb ers i s - 8 an d t h e s u m o f t h e i r s q u a res i s 50. F in d t h e n u mb ers

解答

The numbers : - 1, 7 or - 7, 1

求解步骤

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x - y = - 8

x^{2} + y^{2} = 50

解方程组:

x - y = - 8, x^{2} + y^{2} = 50 : (x = - 1, x = - 7, y = 7 y = 1)

The numbers : - 1, 7 or - 7, 1

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