# CBSE Class 10-Mathematics: Chapter –4 Quadratic Equations Part 19

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**Question 8:**

If **i**s a root of the quadratic equation and the quadratic equation has equal root, find the value of .

**Answer:**

is root of

**Question 9:**

Solve for

**Answer:**

Put

But

**Question 10:**

solve for by factorization method.

**Answer:**

**Question 11:**

olve for

**Answer:**