a.)√2 +17√3 b.)-47√2+107√3
= √81√2 + 11√81√3 - 7√64√2 + √64√3 = 9√2 + 99√3 - 56√2 + 8√3 = -47√2 + 107√3 Looks like (b) to me
You can ask a new question or answer this question.