How do you simplify #5x^6(2x^4-x^3+7x^2-4x)#?

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Answer 1 · 2018-06-04T18:57:37

#5x^7(2x^3-x^2+7x-4)#

#5x^6(2x^4-x^3+7x^2-4x)#

#5x^6* x(2x^3-x^2+7x-4)#

#5x^7(2x^3-x^2+7x-4)#

Answer 2 · 2018-06-04T18:59:29

#10x^10-5x^9+35x^8-20x^6#

expanding

#5x^6*2*x^4-5*x^6*x^3+5*x^6*7x^2-5*x^6*4#
combinging likewise Terms

#10x^10-5x^9+35x^8-20x^6#