![\sqrt [ 3 ] { 1215 } \times \sqrt [ 3 ] { 2025 }](https://tex.z-dn.net/?f=%5Csqrt+%5B+3+%5D+%7B+1215+%7D+%5Ctimes+%5Csqrt+%5B+3+%5D+%7B+2025+%7D "\sqrt [ 3 ] { 1215 } \times \sqrt [ 3 ] { 2025 }")
( hint
![\sqrt[3]{1215} \times \sqrt[3]{2025} = \sqrt[3]{1215 \times 2025} .](https://tex.z-dn.net/?f=+%5Csqrt%5B3%5D%7B1215%7D++%5Ctimes++%5Csqrt%5B3%5D%7B2025%7D++%3D++%5Csqrt%5B3%5D%7B1215+%5Ctimes+2025%7D+. "\sqrt[3]{1215} \times \sqrt[3]{2025} = \sqrt[3]{1215 \times 2025} .")
factorise 1215 and 2025 make groups of triplet
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Answer:
cube root of 1215× cube root of 2025
=cube root of 1215×2025
=cube root of (5×9×9×3)(5×5×9×9)
=cube root of (5^3×9^3×3×3×3)
=cube root of (5^3×9^3×3^3)
=5×9×3
=135
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