anonymous
  • anonymous
i need help solving quadratic equations by factors. the equation is 5x^2=18x+35
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
set equal to zero: 5x^2-18x-35=0 then find two numbers that multiply to get -175 and add to get -18, which are -25 and 7. use them to split the middle term: 5x^2-25x+7x-35=0 then use grouping: 5x(x-5)+7(x-5)=0 so (5x+7)(x-5)=0 setting each equal to zero, x=-7/5 or x=5
anonymous
  • anonymous
do you need any more detail?
anonymous
  • anonymous
no i dnt thank you for your help

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