galacticgem18 galacticgem18

19-09-2019
Mathematics

contestada

What is the missing polynomial?

? – (20 – 4x – 5x^2) = 20 – 7x^2

Options:

4x-12x^2

4x-2x^2

40-4x-12x^2

40-4x-2x^2

Respuesta :

nanamityjo nanamityjo

19-09-2019

Answer:

C. 40-4x-12x^2

Step-by-step explanation:

very simple

? – (20 – 4x – 5x2) = 20 – 7x2, so ? = 20 – 7x2 + (20 – 4x – 5x2)

? = 20 – 7x2 + (20 – 4x – 5x2)=20-7x²+20-4x-5x²=40-12x²-4x

Answer Link

ohgeekaykay ohgeekaykay

13-12-2019

Answer:C

Step-by-step explanation:

Answer Link

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