Odpowiedź:
a) (3x²+2x-4)x² = 3x²•x²+2x•x²-4•x²=3x⁴+2x³-4x²
b) -2x³(¼x²-½x-2)= -2x³•¼x² - (-2x³)•½x -2•(-2x³)= -0,5x⁵+x⁴+ 4x³
c) -½x²(4x²y-2xy²)=-½x²•4x²y -½x²•(-2xy²)= -2x⁴y+x³y²
d) ✓2x⁴(✓8xy+y²)= ✓2x⁴•✓8xy+✓2x⁴•y²= 4x²✓xy +✓2x²y²
e) (x²y-xy+xy²)x²y= x²y•x²y -xy•x²y +xy²•x²y=x⁴y²- x³y²+x³y³
f) 2✓3xy³(✓3x²y²-½x³y)=2✓3xy³•✓3x²y²-½x³y•2✓3xy³=
