Completing square

Solve the quadratic equation: m2=4m+20 using completing the square method

Correct answer:

m1 =  6.899
m2 =  -2.899

Step-by-step explanation:

m2=4m+20 m24m20=0 (m2)2420=0 (m2)224=0 (m2)2=24 m2=±24  m1=2+24=6.899
m2=224=2.899

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