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8) समीकरण x +7(3+2k)-2x(1+3k)=0 के मूल बराबर हैं।तो k का मान ज्ञात करें। |
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Answer» x^2+ 7(3+2k)-2x(1-3k)=0; x^2+21+14k-(2x+3kx)=0; x^2+21+14k-2x-6kx =0 21 +14k-6kx-2x+x^2 ,, solving for k, added -21; 21-21+14k+6kx-2x+x^2; 14k+6kx-2x+x^2=-21 added -2x, 14k+6kx-2x+2x+x^2=-21+2x added -2x ; 14k+6kx+x^2=-21 +2x added and combine 14k+6kx+x^2-x^2=-21+2x-x^2 14k+6kx+0-0=-21+3x-x^2; combine like the terms 21+14x+-6kx+ - 2x + x^2=0 the solution is could no it is correct answer |
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