Identify the expression as an equation containing fractions, a fractional equation, or a proportion. (2x/x+7)-(x)/(x+3)= 1+ (1/x^2+10+21)

a) Equation containing fractions
b) Fractional equation
c) Proportion

answer: i don't understand it

step-by-step explanation: sorry

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.