Question

a) (a + 3) (a – 1) =
b) (3x3 – x2) ( -2x) =
c) (x3 – 3x2 + 1 ) (3x) =
d) (3y3 + 5 – 6y) (y2 + 2) =
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Answer 1

Respuesta:

a) (a + 3) (a – 1) =a²+3a-a-3=a²+2a-3

b) (3x3 – x2) ( -2x) =-6x⁴+2x³

c) (x3 – 3x2 + 1 ) (3x) =3x⁴-9x³+3x

d) (3y3 + 5 – 6y) (y2 + 2) =3y⁵+5y²-6y³+6y³+10-12y=3y⁵+5y²-12y+10