a) x²-5x+6-2x=x²-7x+6
b) (2x+3)x=2x²+3x
c) - 3x²(x²-2x+1)=-3x⁴+6x³-3x²
d) (x-2)(x²+2x+4)=x³+2x²+4x-2x²—4x-8=
=x³—8
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
a) x²-5x+6-2x=x²-7x+6
b) (2x+3)x=2x²+3x
c) - 3x²(x²-2x+1)=-3x⁴+6x³-3x²
d) (x-2)(x²+2x+4)=x³+2x²+4x-2x²—4x-8=
=x³—8