Question

Answer 1

Answer 2

\(\dfrac{\left|-5\right|.7^4+7^3.25}{7^5.125-7^3.50}\\ =\dfrac{7^3.5\left(7+5\right)}{7^3.5^2\left(7^2.5-2\right)}\\ =\dfrac{12}{5.243}\\ =\dfrac{12}{1215}\\ =\dfrac{4}{405}\)

Answer 3

\(\dfrac{\left|-5\right|7^4+7^3.25}{7^5.125-7^3.50}=\dfrac{5.7^3\left(7+5\right)}{7^3.5\left(25.7^2-10\right)}=\dfrac{12}{1215}=\dfrac{4}{405}\)