Question

Jawabkan ya kak makasih kak

Answer 1

5. 4^3/2 x 4^1/2 x 4^-1/2 x 4^-3/2
= 4^3/2 + 1/2 + (-1/2) + (-3/2)
= 4^0
= 1 (opsi D)

6. √x.√x = √x² = x (opsi A)

7. √486 - √6 - √54 = √81.6 - √6 - √9.6
= 9√6 - √6 - 3√6
= (9 - 1 - 3)√6
= 5√6 (coba cek lg ya:)

8. (√7 + √3)² = (√7 + √3)(√7 + √3)
= 7 + √21 + √21 + 3
= 10 + 2√21 (opsi C)