(4k+1)2+8(4k+1)+15=0

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Solution for (4k+1)2+8(4k+1)+15=0 equation: 



(4k+1)2+8(4k+1)+15=0

We multiply parentheses

8k+32k+2+8+15=0

We add all the numbers together, and all the variables

40k+25=0

We move all terms containing k to the left, all other terms to the right

40k=-25

k=-25/40

k=-5/8

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