Five mathematical quadratic equations solved with answers

Answer 1

1. x^2 + 5x + 6 = 0
Solution:
(x+2)(x+3) = 0
x = -2, -3

2. 2x^2 - 7x - 4 = 0
Solution:
(2x+1)(x-4) = 0
x = -1/2, 4

3. 3x^2 - 10x + 7 = 0
Solution:
(3x-7)(x-1) = 0
x = 7/3, 1

4. 4x^2 - 4x - 15 = 0
Solution:
(4x+5)(x-3) = 0
x = -5/4, 3

5. x^2 + 3x - 10 = 0
Solution:
(x+5)(x-2) = 0
x = -5, 2