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Mathematics 13 Online
OpenStudy (ineedhelp10):

dealing with the zero-product property..

OpenStudy (ineedhelp10):

apply the zero-product property to solve the following equations:

OpenStudy (ineedhelp10):

\[x(2x+5)=0\]

OpenStudy (ineedhelp10):

\[5(x-1)(x+4)(2x-3)=0\]

OpenStudy (ineedhelp10):

they're both different problems btw

jimthompson5910 (jim_thompson5910):

If x(2x+5)=0 then either x = 0 or 2x+5 = 0

jimthompson5910 (jim_thompson5910):

solve 2x+5 = 0 for x to get 2x+5 = 0 2x+5-5 = 0-5 2x = -5 2x/2 = -5/2 x = -5/2

jimthompson5910 (jim_thompson5910):

So if x(2x+5)=0, then x = 0 or x = -5/2

jimthompson5910 (jim_thompson5910):

5(x-1)(x+4)(2x-3)=0 breaks up into x-1=0 or x+4=0 or 2x-3=0 solve each equation for x to get your three solutions

OpenStudy (ineedhelp10):

so then the two answer choices will be x=0 and x=-5/2 correct?

jimthompson5910 (jim_thompson5910):

for x(2x+5)=0, yes

OpenStudy (ineedhelp10):

@jim_thompson5910 is is x=1 x=-4 and x=3/2 ?

jimthompson5910 (jim_thompson5910):

for 5(x-1)(x+4)(2x-3)=0 , yep

OpenStudy (ineedhelp10):

thank you @jim_thompson5910

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