The discriminant, because it helps you to discriminate between the type (and number) of roots.
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Use the quadratic formula, with a = 1, b = -3, c = 2.
the quadratic formula is [ neg. b plus or minus the square root of (b squared minus 4ac) ] all divided by 2a ur question doesnt have and =, +, or - so it cant be effectively solved
It is a quadratic equation with one unknown variable, x which has no real roots.
sin squared
x^2 - 6x + 6 = 0 Quadratic formula give (6 +/- sqrt(36 - 24))/2 ie 3 +/- (sqrt 12)/2 = 3 +/- 3.464/2 = 3 +/- 1.732 = 4.732 or 1.268