Question

Efetue as adicoes e subtracoes abaixo , simplificando quando possivel :
a) 8x³ +4x³ =
b)3a²b²-4a²b² = 
c)3x²+(-5y+7x²) - (8y+10x²)
d)z³/6 -2z³+z³ =

Answer 1

a) 8x³ +4x³ =  12x³
b)3a²b²-4a²b² =  -a²b²
c)3x²+(-5y+7x²) - (8y+10x²) = 3x² -5y + 7x² - 8y -10x² = -13y
d)z³/6 -2z³+z³ = -(5 z³)/6

Answer 2

A = 12 X^3

B= -a^2b^2

C= 3x^2+40y^2+50x^2y-56x^2y-70x^4    = -70x^4+43x^2-6x^2y

D= -2z^3+6