(x+m)(34+5x)=? (x+m)(\frac{3}{4}+5x)=\text{?} (x+m)(43+5x)=?
34x+5x2+34m+5mx \frac{3}{4}x+5x^2+\frac{3}{4}m+5mx 43x+5x2+43m+5mx
534x+534m 5\frac{3}{4}x+5\frac{3}{4}m 543x+543m
(a+b)(3+ab)=? (a+b)(3+\frac{a}{b})=\text{?} (a+b)(3+ba)=?
4a+a2b+3b 4a+\frac{a^2}{b}+3b 4a+ba2+3b
4a+(1a2+3)b 4a+(\frac{1}{a^2}+3)b 4a+(a21+3)b
(34+2a)(8a+9ba)−(5+a)(32a+b)=? (\frac{3}{4}+2a)(8a+9ba)-(5+a)(\frac{3}{2}a+b)=\text{?} (43+2a)(8a+9ba)−(5+a)(23a+b)=?
−414+1012a+(9a+1)b -4\frac{1}{4}+10\frac{1}{2}a+(9a+1)b −441+1021a+(9a+1)b
−32a+534ab+1412a2+(18a2−5)b -\frac{3}{2}a+5\frac{3}{4}ab+14\frac{1}{2}a^2+(18a^2-5)b −23a+543ab+1421a2+(18a2−5)b