Question

Which expression is equivalent to 76a^2 b^3 / 19 a b

Answer 1

$\\ \rm\Rrightarrow \dfrac{76a^2b^3}{19ab}$

Use exponent rule

• a^m÷a^n=a^{m-n}

$\\ \rm\Rrightarrow \dfrac{76}{19}a^{2-1}b^{3-1}$

$\\ \rm\Rrightarrow 4a^1b^2$

$\\ \rm\Rrightarrow 4ab^2$