Explicação passo-a-passo:
[tex](x {}^{4} \times x {}^{2} {}^{} \times x {}^{3} ) {}^{2} \div x {}^{4 \times 5} [/tex]
[tex](x {}^{(4 + 2 + 3)} ) {}^{2} \div x {}^{20} [/tex]
[tex](x {}^{9} ) { }^{2} \div x {}^{20} [/tex]
[tex]x {}^{9 \times 2} \div x {}^{20} [/tex]
[tex]x {}^{18} \div x {}^{20} [/tex]
[tex]x {}^{18 - 20} [/tex]
[tex]x {}^{ - 2} [/tex]
