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

3 min read Jun 16, 2024
(4x-1)^2-(3x+2)(3x-2)=(7x-1)(x+2)+(2x+1)^2-(4x^2+7)

Solving the Equation: (4x-1)^2-(3x+2)(3x-2)=(7x-1)(x+2)+(2x+1)^2-(4x^2+7)

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

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

Step 1: Expand the Expressions

Begin by expanding the squares and the products using the distributive property or the appropriate formulas:

  • (4x-1)^2: (4x-1)(4x-1) = 16x^2 - 8x + 1
  • (3x+2)(3x-2): This is a difference of squares pattern: (3x)^2 - (2)^2 = 9x^2 - 4
  • (7x-1)(x+2): 7x^2 + 14x - x - 2 = 7x^2 + 13x - 2
  • (2x+1)^2: (2x+1)(2x+1) = 4x^2 + 4x + 1

Now the equation becomes:

16x^2 - 8x + 1 - (9x^2 - 4) = 7x^2 + 13x - 2 + 4x^2 + 4x + 1 - (4x^2 + 7)

Step 2: Simplify by Removing Parentheses

Be careful with the negative signs in front of the parentheses:

16x^2 - 8x + 1 - 9x^2 + 4 = 7x^2 + 13x - 2 + 4x^2 + 4x + 1 - 4x^2 - 7

Step 3: Combine Like Terms

Combine all the x^2 terms, x terms, and constant terms:

7x^2 - 8x + 5 = 7x^2 + 17x - 8

Step 4: Isolate the Variable

To get all the x terms on one side, subtract 7x^2 from both sides:

-8x + 5 = 17x - 8

Next, subtract 17x from both sides:

-25x + 5 = -8

Step 5: Solve for x

Finally, subtract 5 from both sides and then divide by -25:

-25x = -13

x = 13/25

Therefore, the solution to the equation is x = 13/25.

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