Question

calcular:
a) 3x²+8x²=

b) 15xy-7xy=

c) (9x²).(2x⁴)=

d) (10x⁶y⁴)/(5x⁴y²)=

Answer 1

a)3x²+8x²=11x²
b)15xy-7xy=8xy
c) (9x²).(2x⁴)=$18 x^{6}$
d) (10x⁶y⁴)/(5x⁴y²)=5x²y²