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• ICSE×
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# Quadratic Equations Free Doubts and Solutions

## A two digit positive number is such that the product of its digits is 6. If 9 is added to the number, the digits interchange their places. Find the number.

Asked by Ruchi 19th February 2019, 12:21 PM

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## Q. 29

Asked by Rayeesa 10th April 2018, 7:29 AM

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## Q. 23

Asked by Rayeesa 10th April 2018, 7:27 AM

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## solve (2x-3/x-1)-4 (x-1/2x-3)=3,where X! =1,X! =3/2.

Asked by nitinkumarsingh.singh.75 5th August 2015, 2:55 PM

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## 2.If the difference of roots of the quadratic equation x^2+4px+p=0 is same as the difference of roots of quadratic equation x^2+4px+q=0,then find the relation between p and q if p!=q. 3.if x^2+5x+6+k=0,then the value of for which roots of the given equation differ by 1 is

Asked by nitinkumarsingh.singh.75 29th July 2015, 1:02 PM

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## 2.If the difference of roots of the quadratic equation x^2+4px+p=0 is same as the difference of roots of quadratic equation x^2+4px+q=0,then find the relation between p and q if p!=q. 3.if x^2+5x+6+k=0,then the value of for which roots of the given equation differ by 1 is

Asked by nitinkumarsingh.singh.75 29th July 2015, 1:02 PM

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## Solve the following questions  1. if p and q are roots of the quadratic equation x^2-(alpha-2)x-alpha-1=0, then what is the minimum  value of p^2+q^2?   2.If the difference of roots of the quadratic equation x^2+4px+p=0 is same as the difference of roots of quadratic equation x^2+4px+q=0,then find the relation between p and q if p!=q.   3.if x^2+5x+6+k=0,then the value of for which roots of the given equation differ by 1 is   4.if b=0,c <0 in ax^2+bx+c=0,then find the value of X.

Asked by nitinkumarsingh.singh.75 28th July 2015, 11:12 AM

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## If alpha and beta are the roots of the equation x^2+5x+3=0,find the value of (1/beta^3)-(1/alpha).

Asked by nitinkumarsingh.singh.75 23rd July 2015, 10:43 AM

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## It's 4x^2 not 4^2.

Asked by nitinkumarsingh.singh.75 19th July 2015, 11:29 AM

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## If k is the ratio of the equation x^2-ax+b=0,then the value of k^2+1/k is

Asked by nitinkumarsingh.singh.75 18th July 2015, 11:09 PM