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Mama L [17]
3 years ago
11

Express (x + 2)² + 9 = 0 in standard form​

Mathematics
2 answers:
notsponge [240]3 years ago
7 0

Answer:

x^2+4x+13=0

Step-by-step explanation:

I'm 100% certain this is right. Have a good day/night wherever you are! :D

saveliy_v [14]3 years ago
4 0
Formula = (a + b)^2 = a^2 + 2ab + b^2

x^2 + 4x + 4 + 9 = 0
x^2 + 4x + 13 = 0
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