Question

Find the product (3x + 5y)( 9x^2 − 15xy + 25y^2)

Answer 1

☝️☝️☝️Find the product (3x + 5y)( 9x^2 − 15xy + 25y^2) this is answer

Answer 2

Answer:

$\sf{(3x + 5y)( {9x}^{2} - 15xy + {25y}^{2} )} \\ \\ \sf{3x( {9x}^{2} - 15xy { + 25y}^{2} ) + 5y( {9x}^{2} - 15xy + {25y}^{2} ) }\\ \\ \sf{ {27x}^{3} \cancel{ - 45 {x}^{2} y } \: \cancel{+ 75x {y}^{2} } \: \cancel {+ 45 {x}^{2} y} \: \cancel{ - 75x {y}^{2} }+ 125 {y}^{3} } \\ \\ { \boxed{ \sf{ \blue{ {27x}^{3} + {125y}^{3} }}}}$

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