2x3 - 12x2 + 32x a. -2x(x + 8)(x - 2) b. -2(x3 + 6x2 - 16x) c. -2(x2 + 8)(x + 2) d. 2x(x + 8)(x - 2)

Im literally having a mental breakdown

Write 5 in the form of a/b using integers to show it as a rational number

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95