▪1) 9×9×9×9×9×9×9×9=9^8
▪2) (-1,2)×(-1,2)×(-1,2)×(-1,2)×(-1,2)=(-1,2)^5
▪3) 2/7 × 2/7 × 2/7 × 2/7 × 2/7 × 2/7 = (2/7)^6
▪4) b×b×b×b×b×b×b×b×b=b^9
▪5) (t+k) × (t+k) × (t+k) × (t+k) = (t+k)^4
▪6) (x/y) × (x/y) × (x/y) × (x/y) × (x/y) × (x/y) × (x/y) × (x/y) × (x/y) = (x/y)^9