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Solve for [tex]\( x \)[/tex]:

[tex]\[ \frac{x^2 - (x+1)(x+2)}{5x + 1} = 6 \][/tex]


Sagot :

Let's solve the equation [tex]\(\frac{x^2 - (x+1)(x+2)}{5x + 1} = 6\)[/tex] step by step.

Step 1: Simplify the numerator:
[tex]\[ x^2 - (x+1)(x+2) \][/tex]
Expand [tex]\((x+1)(x+2)\)[/tex]:
[tex]\[ (x+1)(x+2) = x^2 + 3x + 2 \][/tex]
So, we have:
[tex]\[ x^2 - (x^2 + 3x + 2) = x^2 - x^2 - 3x - 2 = -3x - 2 \][/tex]

Step 2: Substitute the simplified numerator back into the equation:
[tex]\[ \frac{-3x - 2}{5x + 1} = 6 \][/tex]

Step 3: Clear the fraction by multiplying both sides of the equation by [tex]\(5x + 1\)[/tex]:
[tex]\[ -3x - 2 = 6(5x + 1) \][/tex]
[tex]\[ -3x - 2 = 30x + 6 \][/tex]

Step 4: Move all terms involving [tex]\(x\)[/tex] to one side of the equation:
[tex]\[ -3x - 2 - 30x = 6 \][/tex]
[tex]\[ -3x - 30x - 2 = 6 \][/tex]
[tex]\[ -33x - 2 = 6 \][/tex]

Step 5: Isolate the term with [tex]\(x\)[/tex]:
[tex]\[ -33x - 2 + 2 = 6 + 2 \][/tex]
[tex]\[ -33x = 8 \][/tex]

Step 6: Solve for [tex]\(x\)[/tex]:
[tex]\[ x = \frac{8}{-33} \][/tex]
[tex]\[ x = -\frac{8}{33} \][/tex]

Thus, the solution to the equation [tex]\(\frac{x^2 - (x+1)(x+2)}{5x + 1} = 6\)[/tex] is:
[tex]\[ x = -\frac{8}{33} \][/tex]