<span>4 ⋅ 6 + 5 ⋅ 7 + 6 ⋅ 8 + ... + 4n( 4n + 2) = 4(4n+1)(8n+7)/6
is false because it isn't even true when n=1.
4 ⋅ 6 = 4(4*1+1)(8*1+7)/6
24 = 4(5)(15)/6
24 = 50
Also 4n(4n+2) is not even the correct formula
for the nth term. The correct nth term formula
of 4 ⋅ 6 + 5 ⋅ 7 + 6 ⋅ 8 + ...
is (n+3)(n+5). So it's wrong all the way around.</span>
Answer:
2+3+3=8
Step-by-step explanation:
You welcome
The parabola has 2 x intercepts, so quadratic equations has 2 real roots (-6), and 3
we can write (x+6)(x-3)=0 , x²+6x-3x-18=0, y=x²+3x-18
check y int =-18 on the graph
y=1x²+3x-18
Answer:
the answer is 10 multiply maybe