The seventh power of (a-b) × (B-A) the fifth power of (a-b) × (a-b) the third power The operation of finding the product of several identical factors is called () Define an operation: a △ B = 10 to the power of a × 10 to the power of B, For example: 3 △ 4 = the third power of 10 × the fourth power of 10 1) Find the value of 3 △ 7 2) (m △ n) △ P and m △ n △ P, please explain

The seventh power of (a-b) × (B-A) the fifth power of (a-b) × (a-b) the third power The operation of finding the product of several identical factors is called () Define an operation: a △ B = 10 to the power of a × 10 to the power of B, For example: 3 △ 4 = the third power of 10 × the fourth power of 10 1) Find the value of 3 △ 7 2) (m △ n) △ P and m △ n △ P, please explain

1. The original formula = (a-b) to the seventh power × [(a-b) to the fifth power] × (a-b) to the third power
=(7 + 5 + 3) power of - (a-b)
=The 15th power of - (a-b)
2. Power operation
3. A △ B = 10 to the power of a × 10 to the power of B = 10 to the power of (a + b)
1) The (3 + 7) power of 3 △ 7 = 10 = the 10th power of 10
2) (m △ n) △ P = 10 to the (M + n) + P) power of 10
M △ (n △ P) = 10 to the (n + P) power of 10 + m power of 10
So (m △ n) △ P and m △ n △ P are not equal