Math, asked by rosemary53, 10 months ago

plz solve.........

no spamming

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Answered by radhika3448

1

Answer:

=[ since (a+b+c)2=a2+b2+c2+2(ab+bc+ca]

so,

=(-2x+5y-3z)2=4x2+25y2+9z2-20xy-30yz+12zx

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