luisalbertorod2007 luisalbertorod2007

24-05-2021
Mathematics

contestada

The following two polynomials are added: (5x 3 −3x 2 +7x)+(4x 3 + ? +7x)=9x 3 −2x 2 +14x
Find the value of the question mark.

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ferrybukantoro ferrybukantoro

24-05-2021

Answer:

x²

Step-by-step explanation:

-2x²- (-3x²) = x²

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