Current location - Training Enrollment Network - Mathematics courses - Knowledge of addition and subtraction of algebraic expressions in junior one mathematics.
Knowledge of addition and subtraction of algebraic expressions in junior one mathematics.
Three, four, five, 1, -y? .

4 、( 1)- 1+3x-2x？ +3x？ (2)3x？ -2x？ +3x - 1

5 、( 1)2x？ y+5x？ -4y？ -3 (2)-3++5x？ +2x？ y-4y？

Knowledge point 2

1、B

2、B

3、( 1) 3 (2) 2, 1

4、0

Related articles
  • How about practicing math in the college entrance examination?
  • Solve the fourth problem of compulsory mathematics in senior one.
  • What's the difference between the first, second and third postgraduate entrance examination?
  • What is a unified formula?
  • Brief Introduction to the Author of "Lecture and Test of Olympic Mathematics Intensive Reading"
  • What is the "3+3 College Entrance Examination Mode"?
  • Self-study mathematics book list
  • Shaanxi normal university mathematics postgraduate entrance examination score line
  • Why is there such a transformation in mathematics?
  • What are the undergraduate and postgraduate courses for studying at the University of Tokyo in Japan?

    • copyright 2024 Training Enrollment Network All rights reserved