Question

Pecahan 12 /per 2+ akar8 senilai dengan...
a. 6akar2 + 6.
b. 6akar2 - 6.
c. -6 - 6 akar2.
d. -4 + 4 akar2.
e. 4 - 4 akar2.

Answer 1

Jawabannya a
krn kan 12 per 2 + akar 8= 6+akar 8=6akar2+6

Answer 2

Jwbn ny B V = anggap aja sbg 'akar' 12/2+V8 = 12/2+V8 x 2-V8 per 2-v8 = 12(2-V8 ) per (2+V8) x (2-V8 ) = 12(2-V8) per (4-8) = 12(2-V8) per -4 = -3(2-V8) =-6+3V8 =-6+3V4x2 =-6+3×2V2 =-6+6V2 =6V2 - 6 = 6 akar 2 -6 = B