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Find the roots of the quadratic equations by using the quadratic formula in each of the following:
1. \(-3x^2 + 5x + 12 = 0\)
The roots are and .
2. \(-x^2 + 7x - 10 = 0\)
The roots are and .
Answer variants:
\(\frac{-4}{3}\)
\(-3\)
\(-5\)
\(5\)
\(-2\)
\(\frac{4}{3}\)
\(3\)
\(2\)