(4x+6y+7z)²
please solve this question
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Step-by-step explanation:
(4x + 6y + 7z)²
(4x + 6y + 7z) (4x + 6y + 7z)
4x(4x+6y+7z) +6y(4x+6y+7z) +7z(4x+6y+7z)
16x²+24xy+28xz+24xy+36y²+42yz+28xz+42yz+49z²
16x²+36y²+49z²+24xy+24xy+28xz+28xz+42yz+42yz
16x²+36y²+49z²+48xy+56xz+84yz
it is the answer
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