phamtrantienphat1511 phamtrantienphat1511

03-09-2022
Mathematics

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(x + 1)3 − x (x − 2)2 − 1

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Littlehoodjr Littlehoodjr

03-09-2022

Answer:

x = -0.27 or 3.77

Step-by-step explanation:

explanation in pic

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djp6182583 djp6182583

03-09-2022

Answer:

This simplifies to 7x^2 - x.

Step-by-step explanation:

(x + 1)3 − x (x − 2)2 − 1

= x^3 + 3x^2 + 3x + 1 - x(x^2 - 4x + 4) - 1

= x^3 + 3x^2 + 3x + 1 - x^3 + 4x^2 -4x - 1

= 7x^2 - x

Answer Link

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