3 years ago

Does Every positive real number have both a positive and negative cube root?

2 answers:

7 0

Yes. For example, 25. The square root of 25 is 5 because 5*5=25. Multiplying two negatives always= a positive, so -5*-5=25.

3 0

Yes but it is really hard to explain

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WITCHER [35]

The answer is D, 14...

7 0

3 years ago

Rashid [163]

Answer:

x = -8

Step-by-step explanation:

I will show each step algebraically. If you need further explanation, feel free to ask questions :)

$\frac{x}{2} +7=3\\$ Rewrite

$\frac{x}{2} =-4$ Subtract 7

$x =-8$ Multiply by reciprocal (2/1)

I hope this helps!

3 0

2 years ago

marin [14]

2x-4=49
2x=54
x is equal to 27

3 0

3 years ago

12345 [234]

7x-2(x+3)
=7x-2x-6
=5x-6

6 0

3 years ago

krek1111 [17]

1/2x-7=1/3x-4,

1/2x-3=1/3x,

1/2x-1/3x=3

1/6x=3/1/6

Final answer x=18

I hope you understand and best wishes!!

4 0

3 years ago