4x3 - 2x + 12x + 9 = 0 are 3, -1 and -1. explain why the fourth root must be a
three roots of the polynomial equation
real number. find the fourth root.

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In an isosceles triangle, the vertex angle is 112 degrees. what is the measure of each base. a.34 b.24 c.44 d.54

Simplify the rational expression. state any restrictions on the variable. t^2-4t-12 / t-8 the / is a fraction sign.