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4 years ago

Write an expression that is equivalent to 5^-3

Mathematics

2 answers:

Leokris [45]4 years ago

8 0

Answer:

1/125

Step-by-step explanation:

=1/5*5*5

=1/5^3

=1/125

SIZIF [17.4K]4 years ago

7 0

Using exponent rules, when a number is raised to a negative exponent, change the exponent to positive and make a fraction with 1 as the numerator and the number as the denominator:

5^-3 = 1/(5^3)

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Find all real and complex zeros of p(x)=x^3-x^2-4x-6

yuradex [85]

Answer:

x = 3 , -1 + $\sqrt{-1}$ , -1 - $\sqrt{-1}$

Step-by-step explanation:

⇒ $p(x)=x^{3} -x^{2} -4x-6$

⇒ $p(x)=(x-3)(x^{2} +2x+2)$

now, for zeros of $(x^{2} +2x+2)$ ,

⇒ x = $\frac{-b}{2a}$ ± $\frac{\sqrt{b^{2}-4ac } }{2a}$

⇒ x = $\frac{-2}{2}$ ± $\frac{\sqrt{2^{2}-4(2) } }{2}$

⇒ x = -1 ± $\sqrt{-1}$

hence, all the roots are,

x = 3, -1 + $\sqrt{-1}$ , -1 - $\sqrt{-1}$

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3 years ago

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podryga [215]

I’m sure it’s only A/E, apologies if wrong

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alexgriva [62]

Answer:

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vesna_86 [32]

Answer:

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Read 2 more answers

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Answer:

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Step-by-step explanation:

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