Solve for x if 25x + 3(5x) = 4

Given that for sets A and B, in a universal set E, A ? ? B then A ? ? (A ? ? B)1 is

Evaluate 13÷[57(910?1+34)]

Evaluate 0.36×5.4×0.634.2×9.0×2.4

Without using table, solve the equation 8x-2 = 225

Evaluate log5(0.04)log318−log32

Simplify (2m?u)2?(m?2u)25m2?5u2

Given that √2 = 1.1414, find without using tables, the value of 1√2

Simplify √48 48 - 9√3 9 3 + √75