Which of the following steps were applied to ABCD to obtain A’b’’c’d

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Which has the greater energy, light of wavelength 519 nm or light with a frequency of 5.42 x 10^8 sec^-1?

Felix wrote several equations and determined that only one of the equations has no solution. which of these equations has no solution?