Question

calcule
a) x².(x-1)=
b) (5x) . ( ax – bx) =

c) (-5b) . ( 2c -3d) =
d ) (-2c²) . ( c² + 4c – 3c) =

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Answer 1

através de distributiva:

a) x³-x²

x

b) 5ax²-5bx²

c) -10bc+15bd

d) -2c⁴-8c³+6c³

-2c⁴-2c³