Respuesta :

Answer:

x^2 + 6x + 9

Step-by-step explanation:

since the expression is squared, you are basically just multiplying the equation by itself, yielding (x+3) times (x+3). From that expression, you would FOIL, multiplying x by x, x by 3, 3 by x, and 3 by 3 and finding the sum of all of that. X multiplying by itself is x squared, and you would end up with two 3x's, giving you 6x, and lastly 3 times 3 is 9.

paige8933

(X+3)^2 is x^2+9 and you have to then get that equal to zero the way I explained it is kind of confusing

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