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Mathematics 19 Online
OpenStudy (anonymous):

Choose the correct simplification of the expression -4x2(6x - 5x2 - 5). 20x4 + 24x3 + 20x2 -9x4 + 2x3 - 9x2 20x4 - 24x3 + 20x2 -20x4 + 24x3 - 20x2

OpenStudy (anonymous):

1 think its Option 3

Nnesha (nnesha):

distribute parentheses by -4x^2 and when you multiply vairables you should add their exponents

Nnesha (nnesha):

variables*

OpenStudy (anonymous):

okay

OpenStudy (campbell_st):

3 is correct

OpenStudy (anonymous):

\[-24x ^{3}+20x ^{4}+20x ^{2}\]

OpenStudy (anonymous):

okay thanks

Nnesha (nnesha):

yep

OpenStudy (campbell_st):

which was your choice... 3

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