Simplify combining like terms:(i) 21b -32 + 7b-206(ii) -z2+ 13z2 -5z + 7z3–152
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(i) 21b-32+7b+206
21b+7b-32+206
28b+174 Ans.
Hey here is your solution. There is some error with (ii) part. Please correct it.
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