Question

can you simplify the expression please?

2 [5x^2-(x^3+5)]

Answer 1

2[5x^2-x^3+5]

10x^2 - x^3 + 5

Arrange, higher powers first.

-x^3 + 10x^2 + 5

Answer 2

-2x^3+10x^2-10

Answer 3

since 2(5x^2-x^3-5)=10x^2-2x^3-10

Answer 4

2[ 5x^2 -x^3 -5]
10x^2 -2x^3 -10
Ans : -2x^3 +10x^2 -10

Answer 5

all of them are wrong O.o