Question

yadi p+q+r=9 to (3-p)³+(3-9)³+(3-r)³= kya hoga​

Answer 1

Answer:

Step-by-step explanation:

start with eq

9=9

9-(p+q+r)=9-(p+q+r)

(3-p)+(3-q)+(3-r)=0

cubing both sides

(3-p)³+(3-9)³+(3-r)³+3(3-p)(3-q)(3-r)=0  (whole cube formula)

(3-p)³+(3-9)³+(3-r)³= -3(3-p)(3-q)(3-r)