Question
(h) \( (x+1)^{2}=(x-1)(x+5) \) (j) \( 3-\frac{x-2}{5}=2 \) (l) \( \frac{x-2}{2}+\frac{x-1}{3}=2 \frac{5}{6} \) (n) \( \frac{x-1}{4}-\frac{x-2}{8}=\frac{x-4}{2}-1 \)
Ask by Whittaker Logan. in South Africa
Feb 25,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The solutions to the equations are:
1. \( x = 3 \)
2. \( x = 7 \)
3. \( x = 5 \)
4. \( x = 8 \)
Solution
Solve the equation \( (x+1)^{2}=(x-1)(x+5) \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\left(x+1\right)^{2}=\left(x-1\right)\left(x+5\right)\)
- step1: Multiply the terms:
\(\left(x+1\right)^{2}=x^{2}+4x-5\)
- step2: Expand the expression:
\(x^{2}+2x+1=x^{2}+4x-5\)
- step3: Cancel equal terms:
\(2x+1=4x-5\)
- step4: Move the expression to the left side:
\(2x-4x=-5-1\)
- step5: Add and subtract:
\(-2x=-5-1\)
- step6: Add and subtract:
\(-2x=-6\)
- step7: Change the signs:
\(2x=6\)
- step8: Divide both sides:
\(\frac{2x}{2}=\frac{6}{2}\)
- step9: Divide the numbers:
\(x=3\)
Solve the equation \( 3-\frac{x-2}{5}=2 \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(3-\frac{x-2}{5}=2\)
- step1: Multiply both sides of the equation by LCD:
\(\left(3-\frac{x-2}{5}\right)\times 5=2\times 5\)
- step2: Simplify the equation:
\(17-x=10\)
- step3: Move the constant to the right side:
\(-x=10-17\)
- step4: Subtract the numbers:
\(-x=-7\)
- step5: Change the signs:
\(x=7\)
Solve the equation \( \frac{x-2}{2}+\frac{x-1}{3}=2 \frac{5}{6} \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\frac{x-2}{2}+\frac{x-1}{3}=2\frac{5}{6}\)
- step1: Convert the expressions:
\(\frac{x-2}{2}+\frac{x-1}{3}=\frac{17}{6}\)
- step2: Multiply both sides of the equation by LCD:
\(\left(\frac{x-2}{2}+\frac{x-1}{3}\right)\times 6=\frac{17}{6}\times 6\)
- step3: Simplify the equation:
\(5x-8=17\)
- step4: Move the constant to the right side:
\(5x=17+8\)
- step5: Add the numbers:
\(5x=25\)
- step6: Divide both sides:
\(\frac{5x}{5}=\frac{25}{5}\)
- step7: Divide the numbers:
\(x=5\)
Solve the equation \( \frac{x-1}{4}-\frac{x-2}{8}=\frac{x-4}{2}-1 \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\frac{x-1}{4}-\frac{x-2}{8}=\frac{x-4}{2}-1\)
- step1: Multiply both sides of the equation by LCD:
\(\left(\frac{x-1}{4}-\frac{x-2}{8}\right)\times 8=\left(\frac{x-4}{2}-1\right)\times 8\)
- step2: Simplify the equation:
\(x=4x-24\)
- step3: Move the variable to the left side:
\(x-4x=-24\)
- step4: Subtract the terms:
\(-3x=-24\)
- step5: Change the signs:
\(3x=24\)
- step6: Divide both sides:
\(\frac{3x}{3}=\frac{24}{3}\)
- step7: Divide the numbers:
\(x=8\)
The solutions to the given equations are:
1. \( x = 3 \)
2. \( x = 7 \)
3. \( x = 5 \)
4. \( x = 8 \)
Answered by UpStudy AI and reviewed by a Professional Tutor
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The Deep Dive
For the equation \( (x+1)^{2}=(x-1)(x+5) \), you can expand both sides. The left side becomes \( x^2 + 2x + 1 \) and the right side becomes \( x^2 + 4x - 5 \). Set them equal: \( x^2 + 2x + 1 = x^2 + 4x - 5 \), and simplify to find \( 2x + 6 = 0 \), leading to \( x = -3 \). Now, let’s look at \( 3-\frac{x-2}{5}=2 \). Start by isolating the fraction: \( \frac{x-2}{5} = 1 \). Multiply both sides by 5, giving \( x - 2 = 5 \). Solving for \( x \) results in \( x = 7 \).