Răspuns:
[tex]\bf c=3^{90}-4\cdot9^{44}+2^{208}:\big(2\cdot4^{103}\big)-5\cdot\big(9^{22}\big)^2[/tex]
[tex]\bf c=3^{90}-2^{2} \cdot\big(3^{2}\big)^{44}+2^{208}:\Big[2\cdot\big(2^{2}\big)^{103}\Big]-5\cdot 9^{22\cdot2}[/tex]
[tex]\bf c=3^{90}-2^{2} \cdot 3^{2\cdot44}+2^{208}:\Big(2\cdot2^{2\cdot103}\Big)-5\cdot 9^{44}[/tex]
[tex]\bf c=3^{90}-2^{2} \cdot 3^{88}+2^{208}:\Big(2\cdot2^{206}\Big)-5\cdot \big(3^{2}\big)^{44}[/tex]
[tex]\bf c=3^{90}-2^{2} \cdot 3^{88}+2^{208}:2^{206+1}-5\cdot 3^{2\cdot44}[/tex]
[tex]\bf c=3^{90}-4\cdot 3^{88}+2^{208}:2^{207}-5\cdot 3^{88}[/tex]
[tex]\bf c=3^{90}-4\cdot 3^{88}+2^{208-207}-5\cdot 3^{88}[/tex]
[tex]\bf c=3^{90}-4\cdot 3^{88}+2^{1}-5\cdot 3^{88}[/tex]
[tex]\bf c=3^{90}-9\cdot 3^{88}+2[/tex].
[tex]\bf c=3^{90}-3^{2}\cdot 3^{88}+2[/tex]
[tex]\bf c=3^{90}-3^{2+88}+2[/tex]
[tex]\bf c=3^{90}-3^{90}+2[/tex]
[tex]\pink{\underline{~\bf c=2~}}[/tex]
