Question

Tolong bantu no 28 dan 29 pake cara

Answer 1

28. 8√4.2+ 7√36.2-√4×2
= 8×2√2+7×6√2-2√2
=16√2+42√2-2√2
=16+42-2√2
= 56√2 (C)

29. 2√3+4/2√3-4 × 2√3+4/2√3+4
= -7-4√3 (D)