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MAXImum [283]
3 years ago
11

Plz help, I don't get it

Mathematics
1 answer:
amm18123 years ago
8 0


Step-by-step explanation:

(a+b)^{2} =a^{2} +2ab+b^{2}

e.g.

(x+9)^{2} =x^2+2(x)(9)+81

(x+9)^{2} =x^2+18x+81                            


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madam [21]

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