1.

X^2-20x+112 =0 find x

Answer» D is negative so no real roots
You should find D first .D=b^2-4ac =(-20)^2-4 (112) =400-448 =(-48)If d<0 there are no real roots.
Are yar quadratic formula put karlo answer mil jayega......
But how
X= 20+ root (-48)/2 and 20 - root(-48)/2


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