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3 votes
: Solve for the variable x3+7=20 s.

User Bhanuteja
by
4.6k points

2 Answers

0 votes

Answer:

x = ∛13 = 2.35 to the nearest hundredth.

Explanation:

x^3 + 7 = 20

x^3 + 7 - 7 = 20 - 7

x^3 = 13

x = ∛13.

User Sanjay Madnani
by
4.7k points
2 votes

Answer:

x = (13) ^ 1/3

x is approximately 2.351334688

Explanation:

x^3 + 7 = 20

Subtract 7 from each side

x^3 + 7-7 = 20-7

x^3 = 13

Take the cube root of each side

x^3 ^ 1/3 = (13) ^ 1/3

x = (13) ^ 1/3

x is approximately 2.351334688

User Roonaan
by
4.4k points