# CBSE Class 11-science Answered

**For a real number r, the quadratics x² + (r - 1) x + 6 and x² + (2r + 1) x + 22 have a common real root. The sum of the possible values of r can be expressed as a/ b where a, b are relatively prime positive integers. Compute 10a + b**

Asked by Bhaveshkr211 | 30 Jul, 2023, 05:21: PM

Expert Answer

The quadratic equations x

^{2}+ (r - 1)x + 6 = 0 and x^{2}+ (2r + 1)x + 22 = 0
Answered by Renu Varma | 31 Jul, 2023, 10:20: AM

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