Remove all perfect squares from inside the square roots. Assume x and y are positive

√(8x³y³)

=√(4·2·x·x²·y·y²)

=2xy·√(2xy)

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,