SOLUTION: which of these is true about 7x^2-9x-11=0
a. the sum of its roots is 7/9
b. the product of its roots is 9/7
c. the sum of its roots is 11/9
d. the product of its roots is -11
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Quadratic Equations and Parabolas
-> SOLUTION: which of these is true about 7x^2-9x-11=0
a. the sum of its roots is 7/9
b. the product of its roots is 9/7
c. the sum of its roots is 11/9
d. the product of its roots is -11
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Question 636045: which of these is true about 7x^2-9x-11=0
a. the sum of its roots is 7/9
b. the product of its roots is 9/7
c. the sum of its roots is 11/9
d. the product of its roots is -11/7
ty Answer by Tatiana_Stebko(1539) (Show Source):
You can put this solution on YOUR website! Use Vieta's formulas for the quadratic equation , , , ,
Answer: d. the product of its roots is -11/7
