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" 19."a^(2)+2ab+b^(2)-9c^(2)...

" 19."a^(2)+2ab+b^(2)-9c^(2)

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If x^(2)+px+1 is a factor of ax^(3)+bx+c then a a^(2)+c^(2)=-ab b) a^(2)+c^(2)ab c) a^(2)-c^(2)=ab d a^(2)-c^(2)=-ab

Divide : 4a^(2) + 12ab + 9b^(2) - 25c^(2) by 2a + 3b + 5c

If a + b +c =9 and ab + bc + ca =26, then find a ^(2) + b ^(2) + c ^(2).

If a + b +c =9 and ab + bc + ca =26, then find a ^(2) + b ^(2) + c ^(2).

If a + b +c =9 and ab + bc + ca =26, then find a ^(2) + b ^(2) + c ^(2).

If a + b +c =9 and ab + bc + ca =26, then find a ^(2) + b ^(2) + c ^(2).

If a + b +c =9 and ab + bc + ca =26, then find a ^(2) + b ^(2) + c ^(2).

Find : a^(2) + b^(2) + c^(2) , if a+ b+ c = 9 and ab+ bc + ca = 24

If a^(2) + b^(2) + c^(2) = 29 and a + b + c = 9 , find: ab + bc + ca

If a+b+ c =9 and a^(2) + b^(2) + c^(2) = 29 , find ab + bc + ca .