Answer :
Answer:
x + 2(x² + 3x - 18) + 14 = 0
x + 2x² + 6x - 36 + 14 = 0
2x² + 7x - 22 = 0
(2x + 11)(x - 2) = 0
2x + 11 = 0 or x - 2 = 0
x = -5.5 or x = 2
(-5.5)² + 3(-5.5) - 18 = -4.25
2² + 3(2) - 18 = -8
{(-5.5, -4.25), (2, -8)}
Answer:
x + 2(x² + 3x - 18) + 14 = 0
x + 2x² + 6x - 36 + 14 = 0
2x² + 7x - 22 = 0
(2x + 11)(x - 2) = 0
2x + 11 = 0 or x - 2 = 0
x = -5.5 or x = 2
(-5.5)² + 3(-5.5) - 18 = -4.25
2² + 3(2) - 18 = -8
{(-5.5, -4.25), (2, -8)}