Question

me ajudem a calcular a)6a-3a+2a= b)-2y²-7y²+5y²= c) (-3x² y) .(+2x²y²)= d) (30x*9)%(10x⁴)=

Answer 1

ola boa tarde ; )

a) 6a-3a+2a=> ( 6-3+2)a ==> 5a

b) -2y^2 -7y^2 + 5y^2==>(-2-7+5)y^2==> -4y^2

c)(-3x^2y).(2x^2y^2)==> -6x^4y^3

d) (30x*9)%(10x^4)==>300x^13 /100%=>3x^13

espero ter ajudado !