5b+(a+b)2(a−b)2\;\frac{5b+(a+b)^2}{(a-b)^2}(a−b)25b+(a+b)2
= 5 ∗ −7 +(3+ −7)2(3− −7)2\;\frac{5\;*\;-7\;+(3+\;-7)^2}{(3-\;-7)^2}(3−−7)25∗−7+(3+−7)2
= −35+16102\;\frac{-35+16}{10^2}102−35+16
= −19100\;\frac{-19}{100}100−19 or -0.19
