root 7 x square - 6 x minus 13 root 7 is equals to zero solve by completing the square method
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7x^2-6x -13√7=0
√7x^2-13x +7x - 13√7=0
x(√7x-13) +√7(√7x-13)=0
(x+√7) (√7x- 13)=0
x= -√7 or 13/√7
nishtha388:
solve by completing square
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