Write the following in expanded form : (x + 2y – 5z)^2
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Answer:
(x+2y-5z)(x+2y-5z)
= X2+2yx-5zx. +. 2yx+4y2-10zy. - 5zx-10yz+25z2
=X2+4yx-10zx+4y2-20yz+25z2.
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