Question 1
DB question no.: 1
Points: 1
Multiply and simplify. Assume that all variables are positive. \(\sqrt{8y^5} \cdot \sqrt{40y^2}\)
Explanation
Multiply the radicands: 8y5 × 40y2 = 320y7. Then simplify: \(\sqrt{320y^7} = \sqrt{64 \cdot 5 \cdot y^6 \cdot y} = 8y^3 \sqrt{5y}\).