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

3 min read Jun 16, 2024
(2x+3)^2+(x-1)(x+1)=5(x+2)^2-(x-5)(x+1)+(x+4)^2

Solving the Equation: (2x+3)^2+(x-1)(x+1)=5(x+2)^2-(x-5)(x+1)+(x+4)^2

This article will guide you through the steps involved in solving the given equation:

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

Let's break down the process step-by-step:

1. Expanding the Expressions:

The first step is to expand all the squared terms and product terms using the appropriate algebraic formulas:

  • (a+b)^2 = a^2 + 2ab + b^2
  • (a-b)^2 = a^2 - 2ab + b^2
  • (a+b)(a-b) = a^2 - b^2

Applying these formulas to our equation, we get:

(4x^2 + 12x + 9) + (x^2 - 1) = 5(x^2 + 4x + 4) - (x^2 - 25) + (x^2 + 8x + 16)

2. Simplifying the Equation:

Now, we need to simplify the equation by removing the parentheses and combining like terms.

4x^2 + 12x + 9 + x^2 - 1 = 5x^2 + 20x + 20 - x^2 + 25 + x^2 + 8x + 16

This simplifies to:

5x^2 + 12x + 8 = 5x^2 + 28x + 61

3. Isolating the Variable:

To solve for x, we need to move all the x terms to one side of the equation and the constant terms to the other.

12x - 28x = 61 - 8

This simplifies to:

-16x = 53

4. Solving for x:

Finally, we can solve for x by dividing both sides of the equation by -16.

x = -53/16

Therefore, the solution to the equation (2x+3)^2+(x-1)(x+1)=5(x+2)^2-(x-5)(x+1)+(x+4)^2 is x = -53/16.

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