Question

Explain the solution plzz​

Answer 1

$HEYA \: \\ \\ 2 {}^{(x - 1)} + 2 {}^{x}\\ - - - - -\\2 {}^{x + 1} - 2 {}^{x} \\ \\ 2 {}^{x} \times 2 {}^{ - 1} + 2 {}^{x}\\ - - - - - - \\2 {}^{x} \times 2 {}^{1} - 2 {}^{x} \\ \\ 2 {}^{x} (2 {}^{ - 1} + 1)\\ - - - - - \\ 2 {}^{x} (2 {}^{1} - 1) \\ \\ 1 +( 1 \div 2) \\ \\ = 3 \div 2$