Question

0efectuati:0,3x²-0,2x²+(2,5x²-1,7x²+x²)-(4,6x²-3,8x²)=? va rogggggggggggggggggggggggggggg si vedeti ca este la lectia  ''CALCUL ALGEBRIC'' :D

Answer 1

$0,3x^2-0,2x^2+2,5x^2-1,7x^2+x^2-4,6x^2+3,8x^2=$
$=(0,3-0,2+2,5-1,7+1-4,6+3,8)x^2=$
$=(0,3+2,5+1+3,8-0,2-1,7-4,6)x^2=$
$=(7,6-6,5)x^2=1,1x^2$