Question

DAU COROANA! a)2x*x³-8+x²-3x= b)-3x²*12x*(-11x²)²= c)(15xy+4y):y= d)-0,5x²-3x³+2x²-0,(1)x²=

Answer 1

a) =2x⁴-8+x²-3x=2x⁴+x²-3x-8

b) =-36x³·121x⁴=-4356x³⁺⁴=-4356x⁷

c) =15xy/y+4y/y=simplificam=15x+4

d) =-1,5x²-3x³-x²/9
=-15x²/10-3x³-x²/9=aducem la acelasi numitor
=(-15x²·9-3x³·90-10x²)/90
=(-135x²-10x²-270x³)/90
=(-270x³-145x²)/90=-3x³-29x²/18