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Butoxors [25]
3 years ago
14

Solve equation by factoring. X3 - 49x = 0

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0

Answer:

x = - 7, x = 0, x = 7

Step-by-step explanation:

Given

x³ - 49x = 0 ← factor out x from each term

x(x² - 49) = 0 ← x² - 49 is a difference of squares, thus

x(x - 7)(x + 7) = 0

Equate each factor to zero and solve for x

x = 0

x - 7 = 0 ⇒ x = 7

x + 7 = 0 ⇒ x = - 7

Drupady [299]3 years ago
5 0

Answer: x=7 or x=-7

x(x+7)(x-7)=0

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