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5. aveti problema in poza​

5 Aveti Problema In Poza class=

Răspuns :

[tex]\it O_1O_2=r_1+r_2 \Rightarrow 18=3x-2+2x+5 \Rightarrow 18=5x+3\bigg|_{-3} \Rightarrow \\ \\ \\ \Rightarrow 15=5x\bigg|_{:5} \Rightarrow x=3\\ \\ \\ R\breve aspunsul\ corect\ este\ \ c)\ \ x=3\ cm[/tex]