(x+3)^2=4

Mathematics

2 answers:

Reil [10]3 years ago

8 0

Answer:

x= -1

Step-by-step explanation:

(x+3)^2=4

2x + 6 = 4

2x = 2

divide each term in 2x = -2 by 2 and simplify.

answer ( x = -1 )

GalinKa [24]3 years ago

6 0

Answer:

x = -1, -5

Step-by-step explanation:

${(x + 3)}^{2} = 4 \\ = > {x}^{2} + 2 \times x \times 3 + {3}^{2} = 4 \\ = > {x}^{2} + 6x + 9 = 4 \\ = > {x}^{2} + 6x = 4 - 9 \\ = > {x}^{2} + 6x = - 5 \\ = > {x}^{2} + 6x + 5 = 0 \\ = > {x}^{2} + 5x + x + 5 = 0 \\ = > x(x + 5) + 1(x + 5) = 0 \\ = > (x + 1)(x + 5) \\ = > x = - 1 \: \: or \: \: - 5$

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Evaluate the limit. lim n > [infinity] 9n^3 +5n - 2n/ 2n^3

expeople1 [14]

Answer:

The value of the limit is $\frac{9}{2}$

Step-by-step explanation:

When we are working with limits in which the variable goes to infinity, we only take the highest order factor of the numerator and of the denominator.

So we have

$\lim_{t \to +\infty} \frac{9n^{3}}{2n^{3}}$