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kolbaska11 [484]
3 years ago
7

Why would "-7" in the expression (x^2+3)-(x-7) become positive?

Mathematics
2 answers:
ryzh [129]3 years ago
5 0
You would use the distributive property with the negative. So the second x becomes negative, but since the 7 is already negative it becomes positive. Think of it as if you put the two dashes together you can make a plus sign.
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

x is the variable that's representing a number so -7 would not become posting

Please help me with with this science question

How does potassium dihydrogen phosphate affect soil, water, and air?

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