What is the set B of real number which satisfies the equation x square=4
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Originally Answered: why are there usually two solutions to a quadratic equation? There is a mathematical rule that says "if a*b = 0, then either a, b, or a and b are zero". Quadratic polynomials are a product of two linear polynomials, such as (x - 1)(x + 9). ... Because of that, quadratic equations have two solutions.
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