kittimau
23.07.2020 •
Mathematics
Factorise 8a^3+b^3+12a^2b+6ab^2
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Ответ:
Explanation:
8a^3+b^3+12a^2b+6ab^2
= (8a^3+b^3) + (12a^2b+6ab^2)
= (2a+b)(4a^2+2ab+b^2)+6ab(2a+b)
= (2a+b)(4a^2+2ab+b^2)+6ab
= (2a+b)(4a^2 + 2ab+b^2+6ab)
= (2a+b)(4a^2+8ab+b^2)
Ответ:
6x4= 24
+ 6x6=36
=60
108-60=48
48/6 =8