Math, asked by rrithikapriya, 2 months ago

please find the answer please ​

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Answered by PragyadiptaSarkar
1

Answer:

Solution:

Given data:

(x + y)3 + 8 (x - y)3 = (3x + Ay) (3x2 + Bxy + Cy2)      ----(1)

Concept used:

a3 + b3 = (a + b)(a2 – ab + b2)

Calculation:

(x + y)3 + 8 (x - y)3

⇒ (x + y)3 + [2 (x – y)]3

⇒ [x + y + 2 (x – y)] {(x + y)2 – (x + y) × 2 (x – y) + (2x – 2y)2}

⇒ (x + y + 2x – 2y) [x2 + 2xy + y2 – (x + y) (2x – 2y) + (4x2 – 8xy + 4y2)]

⇒ (3x – y) [x2 + 2xy + y2 – (2x2 – 2xy + 2xy – 2y2) + 4x2 – 8xy + 4y2]

⇒ (3x – y) (5x2 – 6xy + 5y2 – 2x2 + 2y2)

⇒ (3x – y) (3x2 – 6xy + 7y2)

Comparing coefficients of terms with equation 1,

⇒ A = -1

⇒ B = -6

⇒ C = 7

⇒ A + B + C = -1 + -6 + 7

⇒ A + B + C = 0

 

∴ The value of A + B + C is 0.

Hope this helps.

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Answered by LokikAgarwal
3

Answer:

x²y³ + 3x³y³ + 3x²y³- 4x³y³

-x³y³ + 4x²y³

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