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CBSE Class 10 Answered

using completing the square method show that the equation x square -8x-18 =0 has no solution
Asked by ajayrath7 | 22 Apr, 2019, 09:12: AM
Expert Answer
The question which you have posted should be like this 
 
using completing the square method show that the equation x square - 8x + 18 = 0 has no solution.
Hence, the solution is 
 
x2 - 8x + 18 = 0
x2 - 8x = -18
x2 - 8x + 16 = -18 + 16
(x - 4)2 = -2
As square of any number is always positive.
Hence, the given equation has no solution.
Answered by Sneha shidid | 22 Apr, 2019, 09:32: AM
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