1. (-4)^-7 × (-4)^9= 2. (2³×5^-3)^-2 × (2^-2: 5²)³=

1. (-4)^-7 × (-4)^9
= (-4)^-7+9
= (-4)^2
= 16

2. (2³×5^-3)^-2 × (2^-2: 5²)³
= 2^-6 × 5^6 × 2^-6 : 5^6
= 2^-6 × 2^-6 × 5^6 : 5^6
= 2^-6+(-6) × 5^6-6
= 2^-12 × 1
= 1/2^12
= 1/4096


semoga membantu ya:)