36x^(2)+6x-(a^(2)+2a-8)=0

Solve for x: x^(2)+6x-(a^(2)+2a-8)=0

36x^(2)-12ax+(a^(2)-b^(2))=0

Factorise the following . ( I ) 2a^(2) +9a+10 (ii) 5x^(2) -29xy -42y^(2) (iii) 9-18x+8x^(2) (iv) 6x^(2) +16xy +8y^(2) (v) 12x^(2) +36x^(2) y +27y^(2) x^(2) (vi) (a+b) ^(2)+9( a+b) +18

The representation of Highway Underpass whose one zero is 6 and sum of the zeroes is 0, is (i) x^(2) -6x+2 (ii) x^(2) -36 (iii) x^(2)-6 (iv) x^(2)-3

If the circle x^(2) +y^(2) -6x -8y+( 25-a^(2) ) =0 touches the axis of x, then a equals.

The HCF of (6x^(4)-13x^(3)+6x^(2)) and (8x^(4)-36x^(3)+54x^(2)-27x) is