Answer:
5x^2-18x-8
Step-by-step explanation:
just (x-4)(5x+2)
4 + 6h = total Houses
Arithmetic:
a(n) = a +(n-1)d
a=15
d=5-15=-10
°.° a(n) = 15 +(n–1)-10
Geometric:
a(n)=a*r^(n-1)
r=5/15=1/3
a(n)=15*(1/3)^(n-1)
hope this helps
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