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15-05-2020
Mathematics

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How many x-intercepts does the graph of y = 4x2 + 5x + 2 have?

Respuesta :

ghanami ghanami

16-05-2020

Answer:

Step-by-step explanation:

hello : y= 4x² + 5x + 2

the x-intercepts when y=0 means : 4x² + 5x + 2=0

a=4 b= 5 c=2

∆ = b²- 4ac ∆ = (5)²- 4(4)(2) =25-32 = -7

∆ < 0 no reals solutions no x-intercepts

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