Question

7^0X (25)^-3/2 -5^-3​

Answer 1

Step-by-step explanation:

${7}^{0} \times {25}^{ - \frac{3}{2} } - {5}^{ - 3}$

$= 1 \times ( { {5}^{2}) }^{ \frac{ - 3}{2} } - {5}^{ - 3}$

because a^0=1

$= {5}^{ - 3} - {5}^{ - 3}$

$= 0$