Question

if r = -10, simplify and find the value of r 3 - 5 (r - 5 )+ R2 - R (r -1)​

Answer 1

r^3 - 5 (r-5)+ r^2 - r (r-1)

(-10)^3 - 5 (-10-5) - 10 (-10-1) [r= -10]

-1000 + 50 + 25 +10+1

-914

hope my answer helps you!