= (5x)^(7+4) × 25 x^(2×4) = (5x)^11 × 25 x^8 = 25^4 × 125 x^22 = 100^4 × 125 x^22 = 100^4 × 100 x^20 = 100^5 x^20 = 100^(5+20) = 100^25 = 100
= (5x)^(7+4) × 25 x^(2×4) = (5x)^11 × 25 x^8 = 25^4 × 125 x^22 = 100^4 × 125 x^22 = 100^4 × 100 x^20 = 100^5 x^20 = 100^(5+20) = 100^25 = 100