(4⋅x+9)⋅7⋅(5⋅x−6)+3⋅x
=7⋅(5⋅x−6)⋅(4⋅x+9)+3⋅x
3⋅x+(5⋅x−6)⋅7⋅(4⋅x+9)
=7⋅(4⋅x+9)⋅(5⋅x−6)+3⋅x
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(4⋅x+9)⋅7⋅(5⋅x−6)+3⋅x
=7⋅(5⋅x−6)⋅(4⋅x+9)+3⋅x
3⋅x+(5⋅x−6)⋅7⋅(4⋅x+9)
=7⋅(4⋅x+9)⋅(5⋅x−6)+3⋅x