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If we take the logarithm of both sides, then it is log(4^x) = log(128). Then from logarithm rules, this can be changed to: x*log(4) = log(128), then x = log(128)/log(4). You can punch this into a calculator and get the answer, but what if we use log base 2, we don't need a calculator. So log2(4) = 2, because 2² = 4. And log2(128) = 7, because 2^7 = 128. So we have x = 7/2 = 3.5, then you can check your answer: 4^3.5 = (4^3)*(4^.5). So 4 cubed = 64, and 4 raised to the 1/2 power is the square root of 4, which is 2. So 64 times 2 = 128.
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What is the answer to 2x4 to the third power?
2*(4*4*4)=128
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a + 4 = 10(a + 4) - 4 = 10 - 4a = 6
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Divide 28 by 4. X = 7
Solve for y 7x plus y equals 4?
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To solve x + x + x + x, set the problem up as multiplication like this 4x = 128. Divide both sides of the problem by 4. You will get x = 32. To check your work, substitute 32 for the x and do the math. 4 x 32 = ?. If the answer is 128, the answer is correct.
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128
What equals 4 times 32?
It is: 4*32 = 128
What is 4 by the power of 7?
4 to the power of 7 is 128
What is 4 to the third power plus 4 to the third power?
128
How many quarts in 128 ounces?
128 ounces equals 1 US gallon or 4 US quarts.
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Easy! if -a = -4 then a = 4!!
How many tablespoon equals to 4 pints?
128 tbsp
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32
How many liters equals 4 cubic feet?
128
What x what equals 128?
1 x 128, 2 x 64, 4 x 32, 8 x 16 = 128
