Solve: x² − 5x+6=05x + 6 = 0 vdhsjv

Answer: x=2x = 2 or x=3x = 3

Step-by-step solution

Step 1: Identify coefficients and split the middle term

We compare the given equation with the standard quadratic form ax2+bx+c=0a x^2 + b x + c = 0, where a=1a = 1, b=−5b = -5, and c=6c = 6. We need two numbers whose product is a×c=6a \times c = 6 and whose sum is b=−5b = -5. The two numbers are −2-2 and −3-3, so we split −5x-5x into −2x−3x-2x - 3x.

Step 2: Factor by grouping

We group the terms in pairs: (x2−2x)−(3x−6)=0(x^2 - 2x) - (3x - 6) = 0. Factoring out common factors gives x(x−2)−3(x−2)=0x(x - 2) - 3(x - 2) = 0. Since (x−2)(x - 2) is common to both terms, we factor it out to obtain (x−2)(x−3)=0(x - 2)(x - 3) = 0.

Step 3: Solve for x using the zero-product property

By the zero-product property, if the product of two factors is 0, at least one of the factors must be 0. Setting x−2=0x - 2 = 0 gives x=2x = 2, and setting x−3=0x - 3 = 0 gives x=3x = 3.

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