mohon di bantu dgn cara kerja
Matematika
Zhary1
Pertanyaan
mohon di bantu dgn cara kerja
1 Jawaban
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1. Jawaban Drkicz
2x - 5y = 31
7x + 3y = 6
eliminasi y nya
6x - 15y = 93
35x + 15y = 30
------------------------- +
41x = 123
x = 3
cari x nya, subtitusikan
2x -5y = 31
2(3) -5y = 31
6 -5y =31
-5y = 25
y = -5
nah,. x = a , y = b jdi (a-b)²
=(3 - (-5))²
=(8)²
=64