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Mathematics, 09.01.2020 03:31 sophiaa23

Billie solved the equation below by completing the square, but she got the incorrect solution. in which step did billie first make an error? choices: 1234

step 1: x^2+10x=49

step 2: x^2+10x+25=49

step 3: (x+5)^2=49

step 4: x+5=+-7

step 5: x=2, x=–12

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