root 2 x square + 7 x + 5 root 2 = 0 solution in quadratic equation by factorisation method
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2x sqr +7x+5
2x sqr +5x+2x +5
x(2x+5)+1(2x+5)
(x+1)(2x+5)
x=-1
or
x=2x=-5
then x=-5/2
2x sqr +5x+2x +5
x(2x+5)+1(2x+5)
(x+1)(2x+5)
x=-1
or
x=2x=-5
then x=-5/2
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