Question

simplify :a16 ×a4 ÷ a18

Answer 1

According to the BODMAS rule there will be first division

a^16*a^4÷a^18
= a^16 * a^4-18
= a^16 * a^-14
= a^ 16+(-14)
= a^16-14
= a^2.

Answer 2

a^16×a^4=a^16+4=a^20
a^20÷a^18= a^20-18=a^2.
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