Answer: 55x^1 y^1
Explanation:Add 20+35= 55 x & y can't stand by it's self, so x^1 and y^1 So you take those answers and you got 55x^1 y^1 You must keep it in letters in alphabetic order or it's considered wrong.
The greatest common factor is 5 .
If you factor it out, the expression becomes 5 (4x + 7y) .
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