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7 votes
7 votes
(×+13)²=(×+12)²+(×-5)²
Give it to me please :(​​

User Gusaki
by
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2 Answers

11 votes
11 votes

To solve the problem, we will use the law of signs, to solve the problem

Law of signs:

  • - × - = +
  • - × + = -
  • + × - = -
  • + × + = +

With the law of signs, we solve, but first we must know the following.

¿What are the equations?

We know that the equations are those mathematical expressions that are called in members and separated, by their equal sign, which these carry their known data and unknown or unknown data, these are related through their mathematical operations.

Solving problem:

  • x² + 26x + 169 = x² + 24x + 144 + x² - 10x + 25
  • x² + 26x + 169 = 2x² + 14x + 169
  • x² + 26x - 2x² - 14x = 0
  • -x² + 12x = 0
  • 12x - x² = 0
  • x (12 - x) = 0
  • x = 0.12

So, the result of this equation is x = 0.12

¡Hope this helped!

(×+13)²=(×+12)²+(×-5)² Give it to me please :(​​-example-1
17 votes
17 votes

Answer:

x = 0, x = 12

Explanation:

Given equation:


(x+13)^2=(x+12)^2+(x-5)^2

Expand:


\implies (x+13)(x+13)=(x+12)(x+12)+(x-5)(x-5)


\implies x^2+26x+169=x^2+24x+144+x^2-10x+25

Collect and combine like terms on the right side of the equation:


\implies x^2+26x+169=x^2+x^2+24x-10x+144+25


\implies x^2+26x+169=2x^2+14x+169

Subtract 169 from both sides:


\implies x^2+26x=2x^2+14x

Subtract x² from both sides:


\implies 26x=x^2+14x

Subtract 26x from both sides:


\implies 0=x^2-12x


\implies x^2-12x=0

Factor out the common term x:


\implies x(x-12)=0

Apply the zero-product property:


\implies x=0


\implies x-12=0 \implies x=12

Solution:

  • x = 0, x = 12

User Matt Austin
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2.9k points