The problem is (10 to the power of 3/4 times 4 to the power of 3/4)tothe power of -4

I tried by trying to get the same base but I seem to get lost after that... please help me out!. thanks

Hi you can use these 2 rules to simplify

(x^n)^m = x^{nm}

x^ny^n = (xy)^n

have a go and let me know how you get on.