What Is The Value Of n So That The Expression
X² + 12 x + n Is A Perfect Square Trinomial ?
( 1 Point )

A . 36
B . 36
C . 72
D . 144

Question

What Is The Value Of n So That The Expression 
X² + 12 x + n Is A Perfect Square Trinomial ?
( 1 Point )

A . 36
B . 36
C . 72
D . 144

parthkohli · Answer

HINT: $$x^2 + 6x + 6x + n$$

parthkohli · Answer

$$x(x + 6) + 6(x + \cdots)$$

parthkohli · Answer

What do you think? @CaritaDeAngel

anonymous · Answer

I'm Not So Sure Still

parthkohli · Answer

Do you know that if you have a perfect square polynomial, then you must separate the middle term into the two same numbers.

parthkohli · Answer

Here, $12 x = 6x + 6x$.

skullpatrol · Answer

$$a^2 +2ab+b^2 = (a+b)^2$$
$$x² + 12 x + n$$

parthkohli · Answer

Now factor the first two terms: $x^2 + 6x = x(x + 6)$

anonymous · Answer

Is It D ?

parthkohli · Answer

$$(x + a)^2 = x^2 + 2ax + a^2$$$12x= 2ax$

skullpatrol · Answer

Why do both A and B have the same answer @CaritaDeAngel ?

parthkohli · Answer

How do you think it is D? Can you explain?

anonymous · Answer

Oops A Is Actually Supposed To Be 6

anonymous · Answer

Sorry My Mistake I Didn't See That

skullpatrol · Answer

No problem :)

anonymous · Answer

I'll Re-Type The Answer Choices Again In Case You Get Confused 

A . 6
B . 36
C . 72
D . 144

skullpatrol · Answer

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