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Factorization — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSFactorization2 Marks
Question
Factorise: $x^4-(y+z)^4$
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Answer

$x^4-(y+z)^4$
$\left(x^2\right)^2-\left\{(y+z)^2\right\}^2. . . .$ [Using Identity $III$
$\left\{x^2-(y+z)^2\right\}\left\{x^2+(y+z)^2\right\}. . . .$[Using Identity $III$
$= (x-y-z)(x+y+z)\left\{x^2+(y+z)^2\right\}$

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