Q. Find one value of x that is a solution to the equation:(3x−1)2+12x−4=0x=
Expand squared term: First, let's expand the squared term (3x−1)2.(3x−1)2=(3x−1)(3x−1)=9x2−3x−3x+1=9x2−6x+1
Substitute expanded term: Now, substitute the expanded term back into the original equation.9x2−6x+1+12x−4=0
Combine like terms: Combine like terms.9x2+6x−3=0
Solve using quadratic formula: This is a quadratic equation, and we can solve for x by factoring, completing the square, or using the quadratic formula. The equation does not factor easily, so let's use the quadratic formula: x=2a−b±b2−4ac, where a=9, b=6, and c=−3.
Calculate discriminant: First, calculate the discriminant b2−4ac.Discriminant = 62−4(9)(−3)=36+108=144
Apply quadratic formula: Since the discriminant is positive, there are two real solutions. Now, apply the quadratic formula.x=2×9−6±144x=18−6±12
Calculate possible values: Calculate the two possible values for x.x1=18−6+12=186=31x2=18−6−12=18−18=−1
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