aneczka1598
A) (-0,4)^2:(-4/25)+0,75:9/16+(-1)^2-(-2)^3=(-4/10)^2:(-4/25)+75/100:9/16+1+8=16/100*(-25/4)+75/100*16/9+1+8=-1+4/3+1+8=8+4/3=24/3+4/3=28/3=9 1/3 b) (3/4-0,25)^2*2+(3/5-0,4)^2*(-5)+(-5)^2=(3/4-25/100)^2*2+(3/5-4/10)^2*(-5)+25=(9/16-625/10000)*2+(9/25+16/100)*(-5)+25=(5625/10000-625/10000)*2+(36/100+16/100)*(-5)+25=5000/10000*2+52/100*(-5)+25=1-13/5+25=5/5-13/5+125/5=117/5=23,4
0,2 * (-4) - 0,2 * (-8) = -0,8 + 1,6 = 0,8
b)
(-6) * 0,28 - 0,24 * (-6) = -1,68 + 1,44 = -0,24
Licze na naj!!!!!
b) (3/4-0,25)^2*2+(3/5-0,4)^2*(-5)+(-5)^2=(3/4-25/100)^2*2+(3/5-4/10)^2*(-5)+25=(9/16-625/10000)*2+(9/25+16/100)*(-5)+25=(5625/10000-625/10000)*2+(36/100+16/100)*(-5)+25=5000/10000*2+52/100*(-5)+25=1-13/5+25=5/5-13/5+125/5=117/5=23,4