" 17,"x^(2)-(a+b)x+ab

Which among the following is the correct value of (x+a)(x+b) a) x^(2)+abx+ab (b) x^(2)-(a+b)x+ab(c)x^(2)+(a+b)x+ab (d) x^(2)+(a-b)x+ab

Find the derivative of x^2 - (a + b)x + ab for some constants a and b .

Expand 4(a^2 +b^2 + x^2) -10(a+b)x + 17ab

x^(2)+2ab=(2a+b)x

Factors of x^(2) + x (a+ b) + ab = ………………..

If a

Fractorise: x ^(2) - x (a + 2b) + 2ab