? Can u post a picture of how the question is written cause I’m kind of confused at the moment
Answer:
A proof is basically evidence from theorms, when you said given it doesn't make sense because what evidence is supporting your saying, does it physically say that this number equals this.
Study the theorms that you learned and maybe you'll find it.
Sorry if this didn't help
Step-by-step explanation:
2abc-3ab
2(2)(-3)(4)-3(2)(-3)
4(-3)(4)-6(-3)
-12(4)+18
-48+18
-30