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(x² + 6x + 9) - 49 = 0
(x + 3)2 - 49 = 0

then to solve

(x + 3)² = 49
x + 3 = +-7
x = -10 or x = 4

Carbon dioxide, water and sunlight

Utilitarianism has in its favour a naturalised (definition-deriving what is good from what is natural), common-sense view of ethics. By associating what is good with what is pleasurable and what is bad wi...

2x² + 3x = 92x² + 3x - 9 = 0(2x - 3)(x+3)2x-3 = 02x = 3x = 3/2x+3=0x=-3x = 3/2 or -3