what is 3d^ times 4d^4

Question

what is 3d^-4 times 4d^4

Answer 1

The integer values simply multiply together and when multiplying some value to some power by the same value to some other power, you just add the exponents together and take the value to that resulting power, so:

3d^-4 * 4d⁴ = (3*4)d^(-4+4) = 12d⁰ = 12*1 = 12 (any non-zero value to the 0^th power is always 1)