Question

si CA (ab)1ab = 8631 calcula a+b÷2
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Answer 1

Respuesta:

(100-ab)(1ab)=8631

(100-ab)(100+ab)=8631

100^2-ab^2=8631

10000-(ab^2)=8631

10000-8631=ab^2

1369=ab^2

√(1369)=ab

37=ab

a=3 b=7

a+b/2=3+7/2=10/2=5

Explicación: