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22-07-2020
Mathematics

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A =3x2+4x+1,B=5x2−3x+8,C=4x2−7x−3, find the value of B + C –A.

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PollyP52 PollyP52

22-07-2020

Answer:

6x^2 - 14x + 4.

Step-by-step explanation:

5x^2 - 3x + 8 + 4x^2 - 7x - 3 - (3x^2 + 4x + 1)

= 5x^2 - 3x + 8 + 4x^2 - 7x - 3 - 3x^2 - 4x - 1

= 6x^2 - 14x + 4.

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