Ifx3-3x2+3x-7=(x+1)(ax2+bx+c), then a+b+c=

Q13 of 111 Page 5

Ifx³-3x²+3x-7=(x+1)(ax²+bx+c), then a+b+c=

We have,

By compairing both sides ,

= a = 1

= a + b = -3

= b + c = 3

= c = -7

Thus , a + (b + c) = 1+3 = 4.

If 3x=a+b+c, then the value of (x-a)³+(x-b)³+(x-c)³-3(x-a)(x-b)(x-c) is

If (x+y)³-(x-y)³-6y(x²-y²)=ky² then k=

The value ofis

The value of is