What are the x-intercepts of y equals 2x2-3x-20?

Anonymous

∙ 14y ago

Updated: 10/17/2024

I never try to factor these but use the quadratic equation to solve these.

X = - b (+/-) sqrt(b2 - 4ac)/2a

a = 2

b = - 3

c = - 20

X = - (- 3) (+/-) sqrt[(- 3)2 - 4(2)(- 20 )]/2(2)

X = 3 (+/-) sqrt( 9 + 160)/4

X = 3 (+/-) sqrt(169)/4

X = [3 (+/-) 13]/4

=================so,

X = 4

X = - 5/2

Wiki User

∙ 14y ago

What else can I help you with?

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