Question

The simplified value of 1.2+(1.2)2+(1.2)3= give the answers

Answer 1

$1.2 + (1.2) ^{2} + {(1.2)}^{3} \\ \\ \\ = > 1.2(1 + 1.2 + {(1.2)}^{2} ) \\ \\ \\ = > 1.2(1 + 1.2 + 1.44) \\ \\ \\ = > \frac{12}{10} (3.64) \\ \\ \\ = >4. 368$