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liberstina [14]
3 years ago
14

Which expression is equivalent to x^2+7x+12/x^2-x-12?

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
5 0
X^2+7x+12/x^2-x-12
x^2+4x+3x+12/x^2+3x-4x-12
x * (x+4) +3(x+4)/ x* (x+3)-4(x+3)
(x+3)(x+4)/(x-4)(x+3)

x+4/x-4
anastassius [24]3 years ago
3 0

Answer:

\frac{(x+4)}{(x-4)}

Step-by-step explanation:

Given : \frac{x^2+7x+12}{x^2-x-12}

Solution:

\frac{x^2+7x+12}{x^2-x-12}

Factorize the numerator and denominator.

\frac{x^2+3x+4x+12}{x^2-4x+3x-12}

\frac{x(x+3)+4(x+3)}{x(x-4)+3(x-4)}

\frac{(x+4)(x+3)}{(x-4)(x+3)}

\frac{(x+4)}{(x-4)}

So, \frac{x^2+7x+12}{x^2-x-12} =  \frac{(x+4)}{(x-4)}

Hence Option B is correct.

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3 years ago
F(x)=x^2-3x-2 is shifted 4 units left. The results is g(x). What is g(x)?
marusya05 [52]

Answer:

B. g(x)=(x+4)^2-3(x+4)-2

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Read 2 more answers
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