Math, asked by sachin5282, 11 months ago

find the product (10-5m) (4m+9)

Answers

Answered by Steph0303
4

Answer:

=> Product : ( 10 - 5m ) ( 4m + 9 )

=> Product : [ 10 ( 4m ) + 10 ( 9 ) - 5m ( 4m ) - 5m ( 9 ) ]

=> Product : [ 40m + 90 - 20m² - 45m ]

=> Product : [ 20m² - 5m + 90 ]

Hence this is the required Product.



sachin5282: bhai -5m Kaise aya
Steph0303: Because it is given in the question as 10 - 5m so I used -5m
Steph0303: :-)
Answered by Anonymous
1

(10-5m)(4m+9)\\\\=10(4m+9)-5m(4m+9)\\\\=40m+90-20m^2-45m\\\\=-5m-20m^2+90\\\\=90-20m^2-5m

This is the answer

Hope it helped.


Steph0303: Hi -5m multiplied by 9 is -45m. Please correct it
Steph0303: -5m ( 4m + 9 )

=> -20m² - 45m

You have written only 45. Please check the second last step
Steph0303: :-)
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