Answers

  • Brainly User
2014-09-22T23:24:22+05:30
1. 10x² + 19x + 6 = 10x² + 15x + 4x + 6  = 5x(2x+3) + 2(2x+3) = (2x+3)(5x+2)

2. 3x² + 14x + 15 = 3x² + 9x + 5x + 15 = 3x(x+3) + 5(x+3) = (x+3)(3x+5)

3. 6x² + 13x + 6 = 6x² + 9x + 4x +6 = 3x(2x+3) + 2(2x+3) = (2x+3)(3x+2)

4. 3a² -14a + 15 = 3a² - 9a - 5a + 15 = 3a(a-3) - 5(a-3) = (a-3)(3a-5)

5. 6a² - 5ab - 6b² = 6a² - 9ab + 4ab - 6b² =3a(2a-3b) + 2b(2a-3b)=(2a-3b)(3a+2b)
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