Question

Efetue e simplifique os polinômios ( alguem me ajudaaaa?)

a) (9r²-3rs+s²)+(10s²-5r²_3rs)=

b) (-5x+4x²-6)-(6+2x²-10x)=

c) 5.(a³-3b²)=

d) (12x⁴-8x²):2x²=

Answer 1

Resposta:

$a)\\ 9r^2-3rs+s^2+10s^2-5r^2-3rs=\\ \\ 9r^2-5r^2-3rs-3rs+s^2+10s^2=\\ \\ 4r^2-6rs+11s^2\\ \\ b)\\ -5x+4x^2-6-6-2x^2+10x=\\ \\ 4x^2-2x^2-5x+10x-6-6=\\ \\ 2x^2+5x-12\\ \\ c)\\ 5a^3-15b^2\\ \\ d)\\ 6x^2-4$