Question

Simplify--
-3b(ab+b^square)+600and find its value for a=4 , b=5

Answer 1

Answer:

-3b (ab + b²) + 600

= -3(5) [ (4)(5) + (5)²] + 600

= -15 [ 20 + 25 ] + 600

= -15 ( 45 ) + 600

= -675 + 600

= -75