Question

Упростите выражение

Answer 1

= ( 10a/(a+b)(a-b) + 5/-(a-b) - 4/a+b ) * a+b/3 = ( 10a/(a-b)(a+b) - 5/a-b - 4/a+b ) * a+b/3 = 10a-5(a+b)-4(a-b)/(a+b)(a-b) * a+b/3 = 10a-5a-5b-4a+4b/(a+b)(a-b) * a+b/3 = a-b/(a+b)(a-b) * a+b/3 = 1/a+b * a+b/3 = 1/3