Question

(-x+2y+z)^2 math question for 9th class​

Answer 1

Step-by-step explanation:

$\huge {\underline {\mathcal \color {gold} {Answer }}}$

Question:

$\huge\bold{(-x+2y+z)^2}$

formula:

$\boxed{\underline {\red{(x+y+z)^2=x^2+y^2+z^2+2xy+2yz+2zx}}}$

solution :

✒$\huge\bold{(-x+2y+z)^2}$

✒$\bold{(-x)^2+(2y)^2(z)^2+2×-x×2y+2×2y×z+2×z×-x}$

✒$\bold{x^2+4y^2+z^2-4xy+4yz-2zx}$

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