Question: Decide what number must be added to make the expression a perfect square trinomial. Then factor x2 -0.4x+ What number must be added to

Decide what number must be added to make the expression a perfect

Decide what number must be added to make the expression a perfect square trinomial. Then factor x2 -0.4x+ What number must be added to make the expression a perfect square trinomial? x -0.4x+ (Type an integer or a decimal.)

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