Step 1. Simplify
7x^2 - 8x - 4 - 2x^2 + 3x + 5 + 5x^2 - 10x - 8
Step 2. Collect like terms
(7x^2 - 2x^2 + 5x^2) + (-8x + 3x - 10x) + (-4 + 5 - 8)
Step 3. Simplify
10x^2 - 15x - 7
The Jasmine result is the good one because 1 mégas meter=1 000 000
Answer:
Yeah and i don't know how to answer that sorry
Step-by-step explanation:
you can't look it up some how?
Answer:
15
Step-by-step explanation:
