10⁴ means 10 x 10 x 10 x 10 which equals 10,000.
You can also call it "10 to the 4th" or "10 to the 4th power"
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a + 4 = 10(a + 4) - 4 = 10 - 4a = 6
Oh, what a happy little question! With the digits 1-9 and 0, you have 10 options for each digit in a 4-digit number. So, you can form 10 x 10 x 10 x 10 = 10,000 different 4-digit numbers. Isn't that just delightful? Just imagine all the beautiful combinations you can create!
-4-x = 10 -x = 10+4 -x = 14 x = -14
Here are some examples: 23= 2 X 2 X 2 = 8 57= 5 X 5 X 5 X 5 X 5 X 5 104=10 X 10 X 10 X 10 = 10000 Powers are the little numbers above the main number.
4(x- 8) + 10 = -10