5)жауабы:мінекей
<img src="http://tex.z-dn.net/?f=+x%5E3+-+27y%5E3%3D%28x-3y%29%28x%5E2%2B3xy%2By%5E2%29" id="TexFormula1" title=" x^3 - 27y^3=(x-3y)(x^2+3xy+y^2)" alt=" x^3 - 27y^3=(x-3y)(x^2+3xy+y^2)" align="absmiddle" class="latex-formula">
3)жауабы;
<img src="http://tex.z-dn.net/?f=4p%2F9%28p%2Bq%29-p%2F3%28p%2Bq%29%3D%284p-3p%29%2F9%28p%2Bq%29%3Dp%2F9%28p%2Bq%29" id="TexFormula1" title="4p/9(p+q)-p/3(p+q)=(4p-3p)/9(p+q)=p/9(p+q)" alt="4p/9(p+q)-p/3(p+q)=(4p-3p)/9(p+q)=p/9(p+q)" align="absmiddle" class="latex-formula">
6)жауабы:
<img src="http://tex.z-dn.net/?f=%5Cfrac%7Bx%5E2-+bx-+ax+%2B+ab%7D%7Bx%5E2%2B+bx+-ax+-+ab%7D%3D%5C%5C%5C%5C%2A%5Cfrac%7B%28x%5E2-+bx%29-+%28ax-ab%29%7D%7B%28x%5E2%2B+bx%29+-%28ax%2Bab%29%7D%3D%5C%5C%5C%5C%2A%5Cfrac%7Bx%28x-b%29-+a%28x-b%29%7D%7Bx%28x%2B+b%29+-a%28x%2Bb%29%7D%3D%5C%5C%5C%5C%2A%5Cfrac%7B%28x-a%29%28x-b%29%7D%7B%28x-a%29%28x%2Bb%29%7D%3D%5C%5C%5C%5C%2A%5Cfrac%7Bx-b%7D%7Bx%2Bb%7D" id="TexFormula1" title="\frac{x^2- bx- ax + ab}{x^2+ bx -ax - ab}=\\\\*\frac{(x^2- bx)- (ax-ab)}{(x^2+ bx) -(ax+ab)}=\\\\*\frac{x(x-b)- a(x-b)}{x(x+ b) -a(x+b)}=\\\\*\frac{(x-a)(x-b)}{(x-a)(x+b)}=\\\\*\frac{x-b}{x+b}" alt="\frac{x^2- bx- ax + ab}{x^2+ bx -ax - ab}=\\\\*\frac{(x^2- bx)- (ax-ab)}{(x^2+ bx) -(ax+ab)}=\\\\*\frac{x(x-b)- a(x-b)}{x(x+ b) -a(x+b)}=\\\\*\frac{(x-a)(x-b)}{(x-a)(x+b)}=\\\\*\frac{x-b}{x+b}" align="absmiddle" class="latex-formula">
