Question

${3x}^{2} + 13x - 10$
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Answer 1

${3x}^{2} + 13x - 10 \\ {3x}^{2} + 15x - 2x - 10 \\ 3x(x + 5) - 2(x + 5) \\ (3x - 2)(x + 5) \\ x = \frac{2}{3} \: or \: - 5$

Answer 2

Answer:

$3x^{2} + 13x - 10 \\3x^{2} + 15x - 2x - 10\\3x ( x + 5) - 2 (x + 5)\\(3x - 2) (x + 5)\\x = \frac{2}3} // x = -5$

HENCE WE GET TWO ROOTS I.E. 2/3 AND - 5...

CAUTION: THE LAST STEP IS FOR FINDING ROOTS NO NEED TO DO FOR SPLITTING MIDDLE TERMS...