Question

17. Efectuati:
a) 1/2 * 4a^2
b) (5/3) x^2y^2 * (-6a)
c) 6/5 * (10/3 m) * (-2 np^2)
d) (-3/8 a * 1/6 b) * (- 1 intreg si 1/3 c)

18. Efectuati:
a) 2x * (-3 + a)
b) 0,2a * (5x + 10y^2)
c) n/2 * (-4x + 2m - 6p)
d) (5a/3 + 8x/5 - y/15) * 15b

Answer 1

a) 1/2 * 4a²=2a²
b) (5/3) x²y² * (-6a) =-10x²y²a
 c) 6/5 * (10/3 m) * (-2 np²)= -8mnp²
d) (-3/8 a * 1/6 b) * (- 1 intreg si 1/3c) =
=(-3/8 a * 1/6 b * (- 4/3c) =1/12 abc


18. Efectuati:
a) 2x * (-3 + a)=-6x+2xa
b) 0,2a * (5x + 10y²)=xa+2ay²
c) n/2 * (-4x + 2m - 6p)=-2nx+nm-3np
d) (5a/3 + 8x/5 - y/15) * 15b=25ab+24xb-yb