4x3 + 3x² – 9x +7
(multiply)
= 12+[tex]3x^{2}[/tex]-9x+7
(calculate)
=19+[tex]3x^{2}[/tex]-9x
(reorder the terms)
= 19+[tex]3x^{2}[/tex]-9x
(Use commutative property to reorder)
= [tex]3x^{2}[/tex]-9x+19
Answer: [tex]3x^{2}[/tex]-9x+19