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if the equation 2x^2+ bx+ 5=0 has no real solutions, which of the following must be true A. b^2 < 10 B. b^2> 10 C. b^240​

if the equation 2x2 bx 50 has no real solutions which of the following must be true A b2 lt 10 B b2gt 10 C b240 class=

Respuesta :

ferrybukantoro

Answer:

C. b²< 40

Step-by-step explanation:

2x²+ bx + 5=0 has no real solutions

=> D< 0

b² < 4ac

b²< 4(2)(5)

b²< 40

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