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What should be added to 3x^2+4 to get 9x...

What should be added to `3x^2+4` to get `9x^2-7?` `6x^2-11\ ` (b) `6x^2+11` `12 x^2-11` (d) `12 x^2+11`

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x^(3)+6x^(2)+11x+6

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The equation whose roots are diminished by 1 than those of 4x^(3)-x^(2)+2x-3=0 is (A) 4x^(3)-11x^(2)+12x+2=0 (B) 4x^(3)-11x^(2)+12x-3=0 (C) 4x^(3)+11x^(2)+12x+2=0 (D) 4x^(3)+11x^(2)+12x-3=0

RD SHARMA-ALGEBRAIC EXPRESSIONS-All Questions
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