Question

7√3 - 4√6 + √48 - √54
What do I do since all the square roots are different?

Answer 1

sqrt(48) = 4*sqrt(3)

sqrt(54) = 3*sqrt(6)

Answer 2

7√3 - 4√6 + √48 - √54
root(6) = root(3)*root(2)
root(48) = root(3)*root(16)
root(54) = root(3)*root(18)

Answer 3

you try to find common sqrt
√48 = 4√3
√54 = 3√6