21.07 beacuse when you add them all up you get that..
The answer would be 54 since m=-2
Step one: 4(-2+5)+42
Step two: (-8+20)+42=54
To get equivalent decimals you times the decimal by a number for example 2
9.1x2= 18.2
or times it by 3
9.1x3= 27.3
the answers are 18.2 and 27.3 and obviously other ones to...
i hope this helped :)
If you simplify it is x^3-x^2-2x+ 24
