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 m2−4m−20=0 (m−2)2−4−20=0 (m−2)2−24=0 (m−2)2=24 m−2=±24  m1=2+24=6.899
m2=2−24=−2.899

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