Elifogzrans
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x-y = 6 ve x.y = 5 olduğuna göre x2 + y2 kaçtır? A) 26 B) 36 C) 46 D) 54​

Sagot :

(×-y)kare=x2-2xy+y2

X-y=6ymış o zaman 6 nın karesi de 36 olur.

2xy deki XY 5 miş o zaman 5.2=10

36=x2+y2-10

=46=x2+y2

Yani cevap 46 dır

En iyi seçersen sevinirim

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