B.)8a^3+2a^2b-36ab-9b^2
(2a^2-9b)(4a+b)
Use the distributive property of multiplication.
4a(2a^2-9b)+b(2a^2-9b)
Expand.
8a^3-36ab+2a^2b-9b^2
Put in neater order, so that powers are consecutive (i.e putting x^2 after x^3)
8a^3+2a^2b-36ab-9b^2
Answer:
17
Step-by-step explanation:
Substitute the value of the variable and simplify.
Anything raised to the power of 0 is one.
16 + 1 = 17
The change in elevation would be 131 meters.