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3 years ago

Help me please!!!!!!!!!!!!

Mathematics

2 answers:

kherson [118]3 years ago

7 0

Answer:

9r^4−r^3s−8r^2s^2+5rs^3+37

Step-by-step explanation:

Distribute the Negative Sign:

=29r4−11r3s+5r2s2+19rs3+4+−1(20r4−10r3s+13r2s2+14rs3−33)

=29r4+−11r3s+5r2s2+19rs3+4+−1(20r4)+−1(−10r3s)+−1(13r2s2)+−1(14rs3)+(−1)(−33)

=29r4+−11r3s+5r2s2+19rs3+4+−20r4+10r3s+−13r2s2+−14rs3+33

Combine Like Terms:

=29r4+−11r3s+5r2s2+19rs3+4+−20r4+10r3s+−13r2s2+−14rs3+33

=(29r4+−20r4)+(−11r3s+10r3s)+(5r2s2+−13r2s2)+(19rs3+−14rs3)+(4+33)

=9r4+−r3s+−8r2s2+5rs3+37

Hope this helps! :)

Step2247 [10]3 years ago

3 0

Answer:

3rd one is the right one .......

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Step-by-step explanation:

Given:

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