hi solve the problem fast
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[tex] ({79}^{2} - {9}^{2}) \div( {89 }^{2} - {9}^{2}) \\ ( 6241 - 81) \div (7291 - 81) \\ 6160 \div 7210 \\ 0.854368932.... \\ \\ or \\ \\ \frac{88}{103} [/tex]