Asked by Kat

How do I solve this?
125x^3 + 343 = 0
Please help me!

14 years ago

Answered by MathMate

Hints:
125x^3 + 343 = 0
(5x)³ - 7³ = 0

and

a³-b³=(a-b)(a&sup2+ab+b²)

14 years ago

Answered by Kat

Thank you!

14 years ago

Answered by MathMate

You're welcome!

14 years ago

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