What are the x-intercepts of the equation f(x))=3x^2+10x-8 ?

1 Answer
Nallasivam V
Oct 26, 2017

x - intercepts are #(2/3,0)# and #(-4,0)#

Explanation:

Given -

#f(x)=3x^2+10x-8#
#y=3x^2+10x-8#

Put #y=0#

#3x^2+10x-8=0#

#3x^2-2x+12x-8=0#

#x(3x-2)+4(3x-2)=0#

#(3x-2)(x+4)=0#

#3x-2=0#

#x=2/3#

#x+4)=0#

#x=-4#

x - intercepts are #(2/3,0)# and #(-4,0)#

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