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Mathematics 8 Online

OpenStudy (anonymous):

11 years ago

OpenStudy (sohailiftikhar):

just make pairs here to solve this as 16*25=400 so u have to find those numbers who's sum will 40 and who's product will be 400 so these two numbers are 20 and 20

11 years ago

OpenStudy (sohailiftikhar):

now \[16x^2+20x+20x+25\]

11 years ago

OpenStudy (sohailiftikhar):

now \[4(4x+5)+5(4x+5)=(4x+5)(4x+5)\]

11 years ago

OpenStudy (sohailiftikhar):

and ur answer is correct

11 years ago

OpenStudy (anonymous):

Hm I like the way you explained it. Thank you :)

11 years ago

OpenStudy (sohailiftikhar):

np :)

11 years ago

OpenStudy (anonymous):

way better than my book

11 years ago

OpenStudy (sohailiftikhar):

lol thanks for compliment :d

11 years ago

OpenStudy (sohailiftikhar):

but i'm average student

11 years ago

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