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X2+6x+c what is the c value

X2+6x+c what is the c value-example-1
User Jossue
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1 Answer

4 votes

Answer:

c = 9

Explanation:

(a + b)² = a² + 2ab + b²

x² + 6x + c =

= x² + 2x·3 + c

2x·3 = 2a·b => √c = 3 => c = 3² => c = 9

User BBlackwo
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