Question

Упрощенное выражение: 2+b/4-2b​

Answer 1

$(\frac{2+b}{2b})^{2}:\frac{2^{2}-b^{2}}{2b^{2}} =2\\\\\frac{(2+b)^{2} }{4b^{2}}*\frac{2b^{2}}{(2-b)(2+b)}=2\\\\\frac{2+b}{2(2-b)}=2\\\\2+b=4(2-b)\\\\2+b=8-4b\\\\b+4b=8-2\\\\5b=6\\\\b=1,2$