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We have : 300 = 22.3.52
The number of integer factors 300 have is :
2.[(2 + 1)(1 + 1)(2 + 1)] = 36
Answer : 36. good
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( x + 1 ) . ( 1 + 1999 ) = 4000
x + 1 = 4000 : ( 1 + 1999 )
x + 1 = 4000 : 2000
x + 1 = 2
x = 2 - 1
x = 1
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We have : 5x2y + 4xy - 9x2y - 4xy
= 5x2y - 9x2y + 4xy - 4xy
= -4x2y
Thank