Question

3 - Calcule as expressões:
a) x³ + 7x3 =
b) 9x² – 2x² =
c) 8x⁴ ÷ 5x² =
d) 3a³ . 7a⁵ =
e) 2ab . a²b⁵ =​

Answer 1

a) x³ + 7x³ =  8x³

b) 9x² – 2x² = 7x²

c) 8x⁴ ÷ 5x² = 1,6x²

d) 3a³ . 7a⁵ = 21x^8

e) 2ab . a²b⁵ =​2a³b^6

Obs.: ^é elevado