Find the value of -2-2-2-2 at a - -2 and b - 3-

When a = 2 and b = 3, 𝑎^2+𝑏^2 𝑎𝑏 𝑏^2 𝑎^2 nbsp;= ( 2)^2 + 3^2 ( 2× 3) 3^2 ( 2)^2 nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; ...

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Factorisation Using Algebraic Identities

Find the valu...

Question

Find the value of $a^{2} + b^{2} - a b - b^{2} - a^{2}$ at $a = - 2$ and $b = 3$ .

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Solution

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a = - 2

b = 3

a^{3} - 3 a^{2} b + 3 a b^{2} - b^{3}

a^{2} + b^{2} - a b - b^{2} - a^{2}

a^{2} + b^{2} + c^{2} = 16

a b + b c + c a = 10

a + b + c

a + b + c = 9

a b + b c + c a = 23

a^{2} + b^{2} + c^{2} .

a + b + c = 0

a^{2} + b^{2} + c^{2} = 16

a b + b c + c a .

a^{2} + b^{2} + 2 a b, 2 b^{2} + c^{2} + 2 b c

4 c^{2} - a^{2} + 2 a c

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