Solve the equation 2x^2+8x-1=o by completing the square. Give your answer to 2 decimal places

Step-by-step explanation:

Hello,

step 1 - we divide all terms by 2

step 2 - we complete the square

we can notice that

so

step 3 - we move the constant term to the right of the equation

step 4 - we take the square root on both sides of the equation

or

step 5 - we subtract 2 from both sides

or

so the solutions are 0.12 and -4.12

hope this helps

i would say b) is your answer

sorry if im wrong

step-by-step explanation: