Find all of the roots of x6 − 25x4 − 625x2 + 15,625 = 0. (Hint: Rearrange the terms with a sum of cubes followed by the two other terms. Factor the sum of cubes and factor the GCF from the two other terms. Then factor by grouping.) The roots with multiplicity 2 are ___ and ___. The roots with multiplicity of 1 are ___ and ___.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]