Answer:
- 2x³
Step-by-step explanation:
f(x) - g(x)
=
- x - (2x³ -
- x) ← distribute parenthesis by - 1
=
- x - 2x³ +
+ x ← collect like terms )
= - 2x³
25 kids in all
2xboys:3x girls
so the equation would be
2x+3x=25
solve,
5x=25
/5 /5
x=5
2x=10
3x=15
10 boys and 15 girls
The only reason an inequality would change would be because a number is divided or multiplied by a negative number. So if it stayed the same, then it would be because there was no division or multiplication by a negative number. Hope I helped :)