Mathematics, 22.05.2020 19:00 cadence58

When the solution of x2 − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2, what is the value of r? x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a 6 42 57 105

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When the solution of x2 − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2, w...