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Sagot :

Answer:

x=3

Step-by-step explanation:

a^2 + b^2 = c^2

x^2 + 4^2 = (x+2)^2

Plug in caculater.

Answer: x=3

ChezCake14idn

Answer:

x = 3

Step-by-step explanation:

Use Pythagorean Theorem:

4² + x² = (x+2)²

Expand and simplify:

16 + x² = x² + 4x +4

The x² cancel out leaving 16 = 4x +4

Now just solve for x:

Subtracting 4 from both sides gives 12 = 4x

x = 3

You can double check this by substituting 3 into x:

4²+3² = (3+2)²

16 + 9 = 25

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