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b = bilangan kedua
a² + b² = 34
a = 2b - 1
(2b - 1)² + b² = 34
4b² - 2b - 2b + 1 + b² = 34
5b² - 4b + 1 = 34
5b² - 4b + 1 - 34 = 0 ( pindah ruas , dari plus jadi min)
5b² - 4b - 33 = 0 ( difaktorkan )
((5b - 15) (5b + 11)) / 5 = 0
(b - 3) ( 5b + 11 ) = 0
b = 3 atau 5b + 11 = 0 , b = -11/5
ambil bilangan bulat b = 3
jadi ,
a = 2b - 1
a = 2(3) - 1
a = 6 - 1 = 5
sehingga nilai a = 5 dan nilai b = 3 ,,,