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Step2247 [10]
1 year ago
12

I need help with this problem. x3+4x

Mathematics
1 answer:
Yuki888 [10]1 year ago
6 0

Answer: x=0 x=2i x=-2i

if your factoring: x(x^2+4)

Step-by-step explanation:

(if your solving for x)

x^{3} +4x\\x(x^{2} +4)\\\\x=0\\\\x=\frac{-b}{2a}\frac{+}{-} \frac{\sqrt{b^2-4ac}}{2a} \\\\x=\frac{0}{2}\frac{+}{-} \frac{\sqrt{0^2-16}}{2} \\x={0}}\frac{+}{-} \frac{\sqrt{-16}}{2} \\

x={0}}\frac{+}{-} \frac{4i}{2} \\\\\\x=\frac{+}{-}2i

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6 0
3 years ago
Read 2 more answers
What is the following sum? 4√5+2√5 a. 6√10 b. 8√10 c. 6√5 d. 8√5
soldi70 [24.7K]
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6 0
3 years ago
Read 2 more answers
6x-12=2x-6 <br><br> Also,how do you check your answer?
taurus [48]
6x-12 = 2x-6

get like terms on the same side by adding/subtracting.

6x - 12 = 2x - 6
+ 12, -2x on both sides

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divide all by 4

x = 1.5

to check your answer, plug in 1.5 for x and see if they are equal to one another.

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2(1.5) - 6 = -3
7 0
3 years ago
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