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3 years ago

If a + b + c = 1, ab + bc + ca = -1 and abc = -1. find the value of a³+b³+c³

Mathematics

1 answer:

DIA [1.3K]3 years ago

4 0

Answer:

Step-by-step explanation:

→ If we know that 3 numbers need to multiply to make -1, it must be

1, 1 and -1

→ Then we just substitute this into a³ + b³ + c³

1³ + 1³ + (-1)³ = 2 - 1 = 1

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Ahmed wrote an expression as 12x + 24, find all the equivalent expressions using the distributive property.

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Answer:

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Step-by-step explanation:

Given

$12x + 24$

Required

Equivalent expressions

No option were given; So, I will list out some possible equivalent expressions.

Using distributive property:

$AB + AC = A*(B + C)$

So, we have:

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Another:

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Another:

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Another:

$12x + 24 = 6*2x + 6*4$

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Another:

$12x + 24 = 12*x + 12*2$

$12x + 24 = 12(x + 2)$

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If a + b + c = 1, ab + bc + ca = -1 and abc = -1. find the value of a³+b³+c³​

If a + b + c = 1, ab + bc + ca = -1 and abc = -1. find the value of a³+b³+c³