From the sum of 3 x2-5 x-2 and -5 x2-8 x-9 subtract 4 x2-7 x-9

Required expression = (3x2 5x + 2) + ( 5x2 8x + 9) (4x2 7x + 9) nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp ...

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Subtraction of Algebraic Expressions

From the sum ...

Question

From the sum of 3x² − 5x + 2 and −5x² − 8x + 9 subtract 4x² − 7x + 9.

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Solution

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3 x^{2} - 5 x + 26

- 5 x^{2} - 8 x + 1

4 x^{2} + 7 x + 1

Subtract $(5 x^{2} - 5 x - 7)$ from the sum of $(x^{2} - 3), (5 - 4 x)$ and $(9 + 4 x^{2})$

4 x^{2} - 3 x y + 7 x

5 x^{2} - 7 x y + 5 x

4 x y - 7 x^{2}

6 x^{3} - 7 x^{2} 2 x + 4

9 x^{3} - 5 x^{2} - 4 x + 6

3 x^{3} + 2 x^{2} - 9

4 x^{3} + 7

P = {3 x}^{2} + 7 x + 8, Q = {2 x}^{2} + x - 9

R = - {5 x}^{2} - 8 x + 1

P + Q + R = 0

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