Question

4x2 + 2x - 15 =0
por formula general plissss :(​

Answer 1

Respuesta:

x = (-1 ± √(61)) / 4

Explicación:

4x² + 2x - 15 = 0

x = (-b ± √(b² - 4ac)) / 2a

x = (-2 ± √((2)² - (4)(4)(-15))) / 2(4)

x = (-2 ± √(4 + 240)) / 8

x = (-2 ± √(244)) / 8

x = (-2 ± √(4*61)) / 8

x = (-2 ± 2√(61)) / 8

x = 2(-1 ± √(61)) / 8

x = (-1 ± √(61)) / 4