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Combining like terms. Please help solve both

Combining like terms. Please help solve both-example-1
User Hai Tien
by
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1 Answer

5 votes
First question:
r squared + 3r squared=
1r squared + 3r squared=
4r squared

Second question:
7s to the fifth+ 4s to the fifth=
11s to the fifth
User Kingkong
by
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