Answer:
(x+9)(x+9)
Step-by-step explanation:
Factor 81+18x+x^2
x^2+18x+81
=(x+9)(x+9)
N + 2d =1
This is the system of equations because it is 2 times more than nickels
So you have to make sure to put the two or it is wrong
Formula used for an equilateral triangle is
Root3 a^2/4
Hope this helps.!!
Answer:
weathering is the procedure where by rock is changed into sediment.i hope i t will help you.good day