5-2x=7-5x
-2x+5x=7-5
3x=2
X=2/3
Answer:
Step-by-step explanation:
your answer is the 2 option
So, u would start by expanding the bracket and ignoring the 2 at the moment.
(x+9)(x+9)= x^2-18x+81(using the foil method!
Then u would put 2 at the front to get:
2(x^2+18x+81)
= 2x^2+36x+162
Amount after 9 years = 3600( 1 + 0.024)^9 = $4456.58
