Question

(a^4+b^4) =?
Plz solve it
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Answer 1

Answer:

a⁴+b⁴ = (a²+b²)²-2a²b²

Step-by-step explanation:

a⁴+b⁴

=(a²)²+(b²)²+2a²b²-2a²b²

=[(a²)²+(b²)²+2a²b²]-2a²b²

= (a²+b²)²-2a²b²

Therefore,

a⁴+b⁴ = (a²+b²)²-2a²b²

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Answer 2

$\huge\sf{Answer:-}$

$= a + b {}^{2} \\ = (a {}^{2} ) {}^{2} +( b {}^{2} ) {}^{2} + 2a {}^{2}b {}^{2} - 2a {}^{2} b {}^{2} \\ = (a {}^{2}) {}^{2} + (b {}^{2} ) {}^{2} + (2a {}^{2} b {}^{2} ) - 2a {}^{2} b {}^{2} \\ = (a {}^{2} + b {}^{2} ) {}^{2} - 2a {}^{2} b {}^{2}$

So,

$a {}^{4} + b {}^{4} = (a {}^{2} + b {}^{2} ) {}^{2} - 2a {}^{2} b {}^{2}$