(7x+1)(x-2)/10+2/5=(x-2)^2/5+(x-1)(x-3)/2

3 min read Jun 16, 2024
(7x+1)(x-2)/10+2/5=(x-2)^2/5+(x-1)(x-3)/2

Solving the Equation: (7x+1)(x-2)/10+2/5=(x-2)^2/5+(x-1)(x-3)/2

This article will guide you through the steps of solving the given equation.

Step 1: Find a Common Denominator

The first step is to find a common denominator for all the fractions in the equation. The least common multiple of 10, 5, and 2 is 10.

  • Multiply the first term by 1/1:
    (7x+1)(x-2)/10 * 1/1 = (7x+1)(x-2)/10 
    
  • Multiply the second term by 2/2:
    2/5 * 2/2 = 4/10 
    
  • Multiply the third term by 2/2:
    (x-2)^2/5 * 2/2 = 2(x-2)^2/10
    
  • Multiply the fourth term by 5/5:
    (x-1)(x-3)/2 * 5/5 = 5(x-1)(x-3)/10 
    

Now the equation becomes:

(7x+1)(x-2)/10 + 4/10 = 2(x-2)^2/10 + 5(x-1)(x-3)/10

Step 2: Simplify the Equation

Since all the terms now have the same denominator, we can eliminate the denominators and work with the numerators only.

(7x+1)(x-2) + 4 = 2(x-2)^2 + 5(x-1)(x-3)

Step 3: Expand and Simplify

Expand the products and simplify the equation.

7x^2 - 13x - 2 + 4 = 2x^2 - 8x + 8 + 5x^2 - 20x + 15 

Combining like terms:

7x^2 - 13x + 2 = 7x^2 - 28x + 23

Step 4: Solve for x

Subtract 7x^2 from both sides and simplify:

-13x + 2 = -28x + 23

Add 28x to both sides and simplify:

15x + 2 = 23

Subtract 2 from both sides and simplify:

15x = 21 

Divide both sides by 15 and simplify:

x = 21/15 = 7/5

Solution

Therefore, the solution to the equation (7x+1)(x-2)/10+2/5=(x-2)^2/5+(x-1)(x-3)/2 is x = 7/5.

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