MATH

MATH

$s=4\qquad $gives $16=32C\qquad $gives $C=\dfrac{1}{2}$

$s=-4\qquad $gives $16=32B\qquad $gives $B=\dfrac{1}{2}$

$s=0\qquad $gives $-16=-16C\qquad $gives $A=1$

So MATH


MATH