## Algebra: A Combined Approach (4th Edition)

$\dfrac{b^{1/2}b^{3/4}}{-b^{1/4}}=-b$
$\dfrac{b^{1/2}b^{3/4}}{-b^{1/4}}$ Evaluate the product in the numerator: $\dfrac{b^{1/2}b^{3/4}}{-b^{1/4}}=\dfrac{b^{1/2+3/4}}{-b^{1/4}}=\dfrac{b^{5/4}}{-b^{1/4}}=...$ Evaluate the division: $...=-b^{5/4-1/4}=-b^{4/4}=-b$