Mathematics, 23.06.2019 10:10 kokilavani

What number should be added to each expression to make a perfect square trinomial? 7x^2 +11x+ 6x^2 -11x+ 2x^2 + 2* squareroot of 2x+ !

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What number should be added to each expression to make a perfect square trinomial? 7x^2 +11x+ 6x^2...