Mathematics
lorenzozac
25

What number raised to the -2 exponent would equal 1/4?

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(2) Answers
djj1

the number is 2, 2^2=4,  2^-2=1/4

spider70158

 First, you could solve this problem algebraically. You could write x^-2=1/4. Next, you may apply the Laws of Exponents, where there's the rule of a^-m=1/a^m. In this case, this shows that x^-2 is equal to 1/x^2. Plus, all you have to do now is solve algebraically, which you can do so by doing cross-products or taking the square root of 4 to find x, as x squared is equal to 4. Your final equation may look like 4=x^2, where you solve for x.

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