Find the Value of N So That the Expression Is $$x ^ { 2 } + 20 x + n$$

question 62

Multiple Choice

Find the value of n so that the expression is a perfect square trinomial and then factor the trinomial. $$x ^ { 2 } + 20 x + n$$

• A) \(n = 100 ; ( x + 10 ) ( x - 10 )\)
• B) \(n = 100 ; ( x + 10 ) ^ { 2 }\)
• C) \(n = 400 ; ( x + 20 ) ^ { 2 }\)
• D) \(n = 100 ; ( x - 10 ) ^ { 2 }\)

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