# Common mistake Mathematics: Multiplication: x - ×

## Common Mistake: Using "x" instead of "×" for Multiplication

When it comes to mathematics, there are certain symbols that need to be used correctly in order to ensure clarity and accuracy. One such symbol is the multiplication sign, which is often mistakenly represented by the letter "x" instead of the correct typographical symbol "×". This is a common mistake that can lead to confusion and misunderstandings.

### The Correct Multiplication Symbol

The correct symbol to represent multiplication is "×", which is a distinct typographical symbol designed specifically for this purpose. It is important to use this symbol in written mathematical expressions to avoid any ambiguity.

### Examples:

• Incorrect: 2x3 = 6
• Correct: 2×3 = 6
• Incorrect: 4x(2+3) = 20
• Correct: 4×(2+3) = 20

As you can see from the examples above, using "x" instead of "×" can lead to confusion, as it may be misinterpreted as a variable or unknown value. To ensure clarity and accuracy in mathematical expressions, it is important to replace "x" with the correct multiplication symbol "×".

While it is possible to manually replace "x" with "×" in your mathematical writings, it can be time-consuming and prone to human error. However, you can easily avoid this mistake by using an advanced grammar checker like Linguix, which automatically detects and corrects such errors, ensuring that your mathematical expressions are accurate and easily understandable.

## Mathematics: Multiplication: x - × mistake examples

• Incorrect:
h = 6,626 x 10⁻³⁴ J.s

Correct:
h = 6,626 ×|· 10⁻³⁴ J.s

• Incorrect:
h = 6.626 x 10⁻³⁴ J.s

Correct:
h = 6.626 ×|· 10⁻³⁴ J.s

• Incorrect:
5 * 2 = 10

Correct:
5 ×|· 2 = 10

• Incorrect:
a = 5 * x + 7

Correct:
a = 5 ×|· x + 7

• Incorrect:
a = 5x * 5 + 7

Correct:
a = 5x ×|· 5 + 7

• Incorrect:
a * b

Correct:
a ×|· b

• Correct:
a = 2 · x² + 5
• Correct:
4,5 × 2,5 = 11,25
• Correct:
Consideremos que x é a coordenada horizontal, e y é a coordenada vertical.
• Correct:
Rodrigues Fernandes, X. L.
• Incorrect:
c=2,998x10⁸ m/s

Correct:
c=2,998×10⁸|2,998·10⁸ m/s

• Incorrect:
h = 6.626x10⁻³⁴ J.s

Correct:
h = 6.626×10⁻³⁴|6.626·10⁻³⁴ J.s

• Incorrect:
5*2 = 10

Correct:
5×2|5·2 = 10

• Correct:
a=2·x²+5
• Correct:
4,5×2,5=11,25
• Correct:
Oxyhalides of americium in the form AmVIO2X2, AmVO2X, AmIVOX2 and AmIIIOX can be obtained by reacting...
• Correct:
Number 1Z1141X30370035113
• Incorrect:
a=5*x+7

Correct:
a=5×x|5·x+7

• Incorrect:
a=5x*5+7

Correct:
a=5x×5|5x·5+7

• Incorrect:
a=7+5x*5

Correct:
a=7+5x×5|5x·5

• Incorrect:
a*b

Correct:
a×b|a·b

• Correct:
a=2·x²+5
• Correct:
4,5×2,5=11,25
• Correct:
Number 1Z1141X30370035113
• Correct:
I feel like dog sh*t.
• Correct:
... a second innings total of 356, Botham scoring 149*.
• Correct:
6 parishes and 2 dependencies; Barbuda, Redonda*, Saint George, ...
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