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Grade: 12

                        

Dear experts please solve and answer step by step. plaese help to me

4 years ago

Answers : (1)

Ajay
209 Points
							
Let r and 4r be the roots of equation ax2+bx+c = 0.
then r+4r = 5r = -b/a and
      r*4r = 4r= c/a
      4*(-b/5a)2 = c/a
    4b2 = 25ac is the required condition
       
4 years ago
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