Expand (3x+5y+2z)(3x-5y+2z)
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Answered by
11
(-3x-5y-2z)^2
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Answered by
43
=9x²-15xy+6xz+15xy-25y²+10yz+6xz-10zy+4z²
=9x²-25y²+4z²-15xy+15xy+6xz+6xz+10yz-10yz
=9x²-25y²+4z²+12xz
Hope it helps you....
=9x²-25y²+4z²-15xy+15xy+6xz+6xz+10yz-10yz
=9x²-25y²+4z²+12xz
Hope it helps you....
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