Simplify--
-3b(ab+b^square)+600and find its value for a=4 , b=5
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Answer:
-3b (ab + b²) + 600
= -3(5) [ (4)(5) + (5)²] + 600
= -15 [ 20 + 25 ] + 600
= -15 ( 45 ) + 600
= -675 + 600
= -75
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