If a and b are the roots of the equation x2 +ax –b = 0, then find a and b

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Alexandra · Answer

Step-by-step explanation:   a and b are roots of equation  a^2+a^2-b=0  2a^2=b  b^2+ab-b=0  b^2+(b/2)^1/2*b-b=0  b(b+(b/2)^1/2-1)=0  (b/2)^1/2=1-b  b/2=1+b^2-2b  b=2+2b^2-4b  2b^2-5b+2=0  2b^2-4b-b+2=0  2b(b-2)-1(b-2)=0  (b-2)(2b-1)=0  b=2 or 1/2  2a^2=2 or 2a^2=1/2  a=+1 or -1     a=1/2or -1/2  for b=2  a=1 or -1  for b=1/2  a=1/2 or -1/2

Ariana

If the height of acuboid becomes zero,it will take the shape of a

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