Mathematics, 30.01.2020 16:57, 2077087

The first few steps in solving the quadratic equation 8x2 + 80x = −5 by completing the square are shown.

8x2 + 80x = −5

8(x2 + 10x) = −5

8(x2 + 10x + 25) = −5 +

which number is missing in the last step?

Answers: 2

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The first few steps in solving the quadratic equation 8x2 + 80x = −5 by completing the square are sh...