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qaws [65]
3 years ago
10

The polynomial x3+8 is equal too (x+2)(x2-2x+4

Mathematics
2 answers:
nekit [7.7K]3 years ago
8 0
For starters:  Please practice presenting polynomial expressions properly.

<span>x3+8 is equal too (x+2)(x2-2x+4  

should be written as   "x^3 + 8 is equal to (not too)  (x+2)(x^2 - 2x + 4).

You don't share the instructions.  I suspect you are to respond "true" or "false."

It happens that x^3 + 8 equals   x^3 + 2^3, which is the sum of two cubes.

There is a formula for the "sum of two cubes:" 

It is a^3+b^3 = (a^2 - ab + b^2)(a+b).

Therefore, </span>x^3 + 2^3 = (x+2)(x^2 -2x + 2^2), or (x+2)(x^2 - 2x + 4).
swat323 years ago
3 0
This is the sum of cubes which factors to:

(x+2)(x^2-2x+4)
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user100 [1]

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3 years ago
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URGENT this is a question on my precalculus test I need help on. Thank you so much
sp2606 [1]

Answer:

a. 5i + 13j

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Step-by-step explanation:

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