Kontrolnaia Rabota Po Algebre 8 Klass Za Pervoe Polugodie Mordkovich [ 2025-2027 ]

D=72−4(2)(-9)cap D equals 7 squared minus 4 open paren 2 close paren open paren negative 9 close paren D=49+72=121cap D equals 49 plus 72 equals 121 , there are two real roots. Note that Calculate the roots using

Perform operations with algebraic fractions. Example :

x1=-7+112⋅2=44=1x sub 1 equals the fraction with numerator negative 7 plus 11 and denominator 2 center dot 2 end-fraction equals four-fourths equals 1 D=72−4(2)(-9)cap D equals 7 squared minus 4 open

The based on the Mordkovich UMK typically covers four main thematic blocks:

For further practice, you can find full variants and video solutions on resources like Infourok or YouTube . Construct a graph of a function (e

: Operations (addition, subtraction, multiplication, division) and simplification. Functions and Graphs : Properties of , including domain and range.

: Properties of arithmetic square roots and simplifying radical expressions. : Operations (addition

Construct a graph of a function (e.g., ) and determine its properties. Solving Equations Solve basic quadratic equations such as