1학년 수학 10.21
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Mathematics
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1st Grade
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Hard
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1학년 수학 10.21
2
일차식
문자의 차수가 1인 식
3x+5, 5y-7
x+5
2x2-3x+6
3
일차식 계산하기
분배법칙을 이용한다.
4
동류항
문자와 차수가 같은 항
-2x, 3x, x / 2y, -5y, y / 2, -5, +7, 13
5
등식
=(등호)를 사용하여 수나 식이 같음을 나타내는 식
6
좌변
등호의 왼쪽 부분
7
우변
등호의 오른쪽 부분
8
양변
좌변과 우변을 합쳐서 양변이라고 한다
9
미지수
모르거나, 구하고 싶은 수를 나타낸 문자
x, y, z, a, b, c, ㅁ
10
방정식
미지수의 값에 따라 참이나 거짓이 될 수 있는 등식
11
해, 근
방정식이 참이 되는 미지수의 값
1학년 수학 10.21
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