Question

решите пж ооооочень нужно лай поставлю​

Answer 1

1) 24b+2(3b-2a)²

24b+2(9b²-12ab+4a²)

24b+18b²-24ab+8a²=24√6+108-72√2(24√6*3(√18(√9*2(3√2))))+24=132-72√2+24√6

2) $\frac{a-5x}{a} : \frac{ax-5x^{2} }{a} \\\frac{(a-5x)*a}{a*(ax-5x^{2})} \\\frac{a-5x}{ax-5x^{2} } \\\frac{-74-50}{-740-500} \\\frac{124}{1240} = 0.1$

3) $\frac{(a^{2}-4b)-4b}{2ab} : (\frac{1}{2b}-\frac{1}{a})\\</p><p>[tex]\frac{1}{2b}-\frac{1}{a}=\frac{a-2b}{2ab}\\\frac{(a^{2}-4b)*2ab}{2ab*(a-2b)}=\frac{a^{2}-4b}{a-2b}=\frac{\frac{2809}{361}-\frac{389}{19}}{\frac{53}{19}-\frac{194}{19}}=\frac{\frac{2809}{361}-\frac{7372}{361}}{-141}=\frac{\frac{-4561}{631}}{-141}=\frac{4561*141}{361}=1781\frac{4}{9}$