Question

Ex 8 pag 65 a 3¹⁸+3¹⁷ =4×3¹⁷​

Answer 1

dam factor comun pe

${3}^{17}$

si calculam

${3}^{17} (3 + 1) = 4 \times {3}^{17} < = > 4 \times {3}^{17} = 4 \times {3}^{17} \: adevarat$