" (1) "4x^(2)-49x+(a^(2)-b^(2))=0

If the range of f(x)=(2x^(4)-14x^(2)-8x+49)/(x^(4)-7x^(2)-4x+23) is (a,b] then (a+b) is

The biquadratic equation, two of whose roots are 1+i , 1-sqrt(2) is A) x^(4)-4x^(3)+5x^(2)-2x-2=0 B) x^(4)-4x^(3)-5x^(2)+2x+2=0 C) x^(4)+4x^(3)-5x^(2)+2x-2=0 D) x^(4)+4x^(3)+5x^(2)-2x+2=0

If x ge 4, A^(2)=x^(2)+12x + 36 , and B^(2)=4x^(2)-28x+49 , then (A+B)^(2)=

Factorise the using the identity a ^(2) -b ^(2) = (a +b) (a-b). 49x ^(2) - 36 y ^(2)

Factorise the using the identity a ^(2) -b ^(2) = (a +b) (a-b). 4x ^(2) - 49y ^(2)

Find the GCD for the following : 35x^(5) y^(3) z^(4) , 49x^(2) yz^(3), 14xy^(2) z^(2)