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haileymaree
04.07.2019 •
Mathematics
Which expression shows the correct multiplication of the following polynomilas? 3x(6x^2-3x+7)
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Ответ:
18x^3-9x^2+21x
Solution:
3x(6x^2-3x+7)=
Applying the distributive property in the multiplication to eliminate the parentheses:
(3x)(6x^2)+(3x)(-3x)+(3x)(7)=
(3*6)x^(1+2)+3*(-3)x^(1+1)+(3*7)x=
18x^3-9x^2+21x
Ответ:
which principle prevents a brach from abusing its power
Step-by-step explanation: