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4x²-3y+2x+(4x+6y+5x²)-(9x²-7y-3x)= ??
(-7xy)×3xy²=?
(-3/4a³b)÷(-1/2ab)=?
Vreau raspusurile sigur corecte


Răspuns :

4x²-3y+2x+(4x+6y+5x²)-(9x²-7y-3x)= 
4x²-3y+2x+4x+6y+5x²-9x²+7y+3x= 
10y+9x

(-7xy)×3xy²=-21x²y³

(-3/4a³b)÷(-1/2ab)= 3/2a²
Buna!
1.   4x²-3y+2x+4x+6y+5x²-9x²+7y+3x=9x²-9x²+9x+10y=9x+10y

2.(-7xy) ·3xy²=-21x²y³

3. -3/4a³b ÷ (-1/2ab)= - 3/4a³b · (-2ab)=3/2a²

Raspunsurile sunt 100% corecte, fii fara griji