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235.2. Identical expressions.

Check the correct answer!

Are the expressions 1+4\times 23-13 and (1+4)\times (23-13) identical?
Grade:
7
Subject
Algebra
Theme
Simple algebric expression transformation
Subtheme
Identical expressions

Solve tasks to find hidden Geo point coordinates

  1. Geometry: Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.
  2. Algebra: Opposite type inequalities.
  3. Algebra: Mutually equal monomials
  4. Algebra: Notation –x < 3 or x ∈ (– ∞; 3)
  5. Algebra: Monomial normal form
  6. Algebra: Equivalent inequalities
  7. Geometry: Angle, angle edges and peak, value, degree, measurement.
  8. Algebra: Direct proportionality concept
  9. Algebra: Numerical connections
  10. Algebra: Linear equations ax + b = 0, where a, b ∈ Q.