anonymous
  • anonymous
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value given the following quadratic equation: 2x2 + 7x + 3 = 0 Numerical Answers Expected! Answer for Blank 1:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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reemii
  • reemii
do you remember what someone told yesterday, there are three cases: 2 solutions, 1 solution, no solution. You will know which case you have by looking at the value of the discriminant (\(\Delta=b^2-4ac\)).
anonymous
  • anonymous
yes, so how do you tell whether or not it has a solution?
reemii
  • reemii
Three cases (to remember) delta > 0 : 2 solutions (-> factoring possible) delta = 0 : 1 solution (twice the same root) (-> factoring possible) delta < 0 : no solution. (no real solution -> no factoring)

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anonymous
  • anonymous
Delta?
reemii
  • reemii
delta=\(\Delta\) = the discriminant :)
reemii
  • reemii
In \(2x^2 + 7x + 3 = 0 \) , \(a=2,b=7,c=3\), then \(\Delta=7^2 - 4\times 2\times 3= 25\).
anonymous
  • anonymous
Oh I see

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