leo4687
16.04.2020 •
Mathematics
Factor completely 2x3 + x2 − 18x − 9. (2 points)
(x2 − 9)(2x + 1)
(x − 3)(x + 3)(2x − 1)
(x − 3)(x + 3)(2x + 1)
(2x − 3)(2x + 3)(x − 1)
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Ответ:
Step-by-step explanation:
g+(h+j)+k
correct cause in addition where you put bracket answer will be same
(g+h)+jk
no there jk multiply while other side there is addition so wrong
(g+h)+j+k
as we say in first one it is correct
gh+jk
g(h+j)k
not equivalent due to multiplication
g+h(j+k)
correct and equivalent