If $A = 2 y^{2} + 3 x - x^{2}, B = 3 x^{2} - y^{2}$ and $C = 5 x^{2} - 3 x y$ then find
$A + B + C$

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Solution

$A = 2 y^{2} + 3 x - x^{2}; B = 3 x^{2} - y^{2};$

$C = 5 x^{2} - 3 x y$

$A + B + C = 2 y^{2} + 3 x - x^{2} + 3 x^{2} - y^{2} + 5 x^{2} - 3 x y$

$= y^{2} + 7 x^{2} + 3 x - 3 x y$

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Similar questions

Let A = 3 y^{2} + 9 x - 3 x^{2}, B = 6 x^{2} - 2 y^{2} + 3 x, C = 9 x^{2} - 3 x y - y^{2} . Find A + B - C.

Let A = 3 y^{2} + 9 x - 3 x^{2}, B = 6 x^{2} - 2 y^{2} + 3 x, C = 9 x^{2} - 3 x y - y^{2} . Find A + B - C.

A = 5 x^{2} + 3 x^{2} - 4 x + 1, B = 3 x^{3} + 5 x^{2} + 3 x - 8

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

(A + B) = C

A = 3 x^{2} - 4 x + 1, B = 5 x^{2} + 3 x - 8

C = 4 x^{2} - 7 x + 3

a x^{2} + b x y + c y^{2}

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

y^{2} - 2 x y - 3 x^{2}

6 x^{2} - 8 x y - y^{2}

2 x y - 2 y^{2} - x^{2}

a + b + c

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