Solve the quadratic equation 3x2−5x+2=03x^2 - 5x + 2 = 0 using the quadratic formula x=−b±b2−4ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}.

Answer: The solutions to the quadratic equation 3x2−5x+2=03x^2 - 5x + 2 = 0 are x=1x = 1 and x=23x = \frac{2}{3}.

Step-by-step solution

Step 1: Identify coefficients

First, we compare the given quadratic equation 3x2−5x+2=03x^2 - 5x + 2 = 0 with the standard form of a quadratic equation, ax2+bx+c=0ax^2 + bx + c = 0. By comparing the coefficients, we identify the values for aa, bb, and cc.

Step 2: Substitute into the quadratic formula

Now, we substitute the identified values of a=3a=3, b=−5b=-5, and c=2c=2 into the quadratic formula x=−b±b2−4ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}. This sets up the equation for solving xx.

Step 3: Simplify the expression under the square root

We simplify the expression under the square root, which is the discriminant. First, we calculate (−5)2=25(-5)^2 = 25 and 4(3)(2)=244(3)(2) = 24. Then, we subtract these values to get 25−24=125 - 24 = 1.

Step 4: Calculate the square root

The square root of 11 is 11. We replace 1\sqrt{1} with 11 in the formula.

Step 5: Find the two possible values for x

Finally, we calculate the two possible values for xx. For the first value, we use the plus sign: x1=5+16=66=1x_1 = \frac{5 + 1}{6} = \frac{6}{6} = 1. For the second value, we use the minus sign: x2=5−16=46=23x_2 = \frac{5 - 1}{6} = \frac{4}{6} = \frac{2}{3}.

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