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It is known that 3a-1 and 13-5a are the square roots of X. to find the value of X, whether there should be two solutions (the answer is two solutions), why? There are specific answers To explain why there are two solutions
There are two cases, 3a-1 and 13-5a are equal = 0, or opposite to each other,
In this problem, 3a-1 = 0 and 13-5a = 0 obviously have no solution, so there is only 3a-1 = - (13-5a), that is, a = 6
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