AB= 3x+4 + 5x-6 = 8x-2
the others are just what they are given as
dropped $3 means "-3", increased $6 means "+6"
the price dropped twice so 2(-3) and increased once by 6
so, 2(-3) + 6 = 0
the change in price is $0
Hope this helps
1. X= 4
2. X=7
3. 8.7x10^10
Answer:
I simplify it and got 5x^2+z+6
Step-by-step explanation:
(4x2 – 2x+8)+(x² + 3x - 2)v=5x^2+z+6
