SOLUTION: Multiply, using the vertical method. 62. 66. (2r -3s)(4r2 -6rs -9s2) 2r-3s 4r2-6rs-9s2 ----------- 8r3-18rs2-9s2 Is this correct?

SOLUTION: Multiply, using the vertical method. 62. 66. (2r -3s)(4r2 -6rs -9s2) 2r-3s 4r2-6rs-9s2 ----------- 8r3-18rs2-9s2 Is this correct?

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Question 83851: Multiply, using the vertical method.
62. 66. (2r -3s)(4r2 -6rs -9s2)
2r-3s
4r2-6rs-9s2
-----------
8r3-18rs2-9s2
Is this correct?
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
IN A WORD --- NO!!!!
4R^2-6RS-9S^2
2R-3S
---------------------------------------
8R^2-12R^2S-18RS^2-12R^2S+18RS^2+27R^3 NOW COMBINE LIKE TERMS:
8R^3-24R^2S+27R63 [THE -18RS^2+18RS^2 CANCEL EACH OTHER]
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