Which of the following represents the sum of the series below? 4 + 7 + 10 + 13 + 16 + 19 + 22 + 25 + 28 +31 + 34 + 37 + 40
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+
2
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13
4+40
2
40=3+(n-1)4
40=4+(n-1)3

I am not sure but I think the answer is The sum would be 286 the arithmetic formula for this sequence is An=n× 3+1.

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

idk

step-by-step explanation:

use that smart brain