What is algebra?
Algebra is a mathematical branch that uses letters, symbols and numbers to present different values and solve problems.
In algebra, characters (x, y, a, etc.) are used to represent unknown numbers.
For example, if you don’t know the number, you can write x instead of this number.
In algebra, a multiplier of a number, a letter (the variable referred to as a variable), or a mixture of the average of both. algebra?
Numbers (x, y, a, etc.)
Coefficients before variables (in 4x, number 4 is a coefficient)
Numbers without variables (5, 12, 100, etc.)
Parts of expressions (2x, 3xy, -5, etc.)
Operations and operations = 20y²
Step to multiply:
1. Multiply by a number (coefficient).
2. Multiply by a variable. 4q = 20pq
Still multiply by a number and write all the variables together.
For this purpose, we use distribution status. bracket. l -last
Example 7:
(x + 3)
foil:
first: xx
outer:x3 = 3x
inenter:2=2x
load:2 add: x·x. X² + 5x + 6
2 = 2x
Interior: 2 x = 2x
last: 2*2= 4
Additional to: x² + 2x + 2x + 4x + 4
His friends give him more than four times as much.
Multiplier:
3°=?
Solve using distribution properties:
3(x+4)=?
5(a -2)=?
Word Problem:
lily deserves x dollars per day. How much will she earn in 7 days?
Terminology Multiplication 2x3x=6x
Unlike multiplication, 3x4y=12xy
Distribution property 2 (x + 3) = 2x + 6
Two equations (x + 3) = x² + 5x + 6
Multiplier 5x= 5x
