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2x^(2)+12x+8 using completing square
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2x^(2)+12x+8
using completing square

User Shawnie
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Answer:


{2x}^(2) + 12x + 8 \\ = {x}^(2) + 6x + 4 \\ = {x}^(2) + 6x + {( (6)/(2)) }^(2) + 4 - {( (6)/(2) )}^(2) \\ = ( {x}^(2) + 6x + {3}^(2) ) + ( - 5) \\ = {(x + 3)}^(2) - 5

User NikosDim
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