Answer:
x = 2, x = 5, c = 3, c = 7, t = 4, t = -4
Explanation:
x^2 - 7x + 10 = (x-2)(x-5) = 0
c^2 - 10c + 21 = (c-3)(c-7) = 0
t^2 - 16 = (t-4)(t+4) = 0
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