Choose the answer from given expression for Q. No 01 to 06
Expression 2x²+ 7y² -15xy²
01. Number of terms
a) 2. b) 3. c) 4. d) 8
02. Coefficients of y²
a) ( 7, – 15x) b) (2x, – 15x) c) (2x, 7) d) (2,-15)
03. Numerical coefficient of xy²
a) 2. b) 7. c) – 15. d) 2x
04. Number of terms with x²
a) 2. b) 1. c) 3. d) 0
05. Operators of given expression
a) (+,-) b) (x, -) c) (x, ➗) d) (+, ➗)
06. Factors of 2x²y term
a) ( 2,x,x,y) b) (15,y,y) c) (-15,2,x) d) (7,x,y)
Answer:
1. (b) 3
explanation:
A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted.
2. (a) 7, -15x
explanation:
Some terms contain variables with a number in front of them. The number in front of a term is called a coefficient.
3. (c) -15
explanation:
A numerical coefficient is a constant multiplier of the variables in a term.
in the given expression xy^2 is multiplied by -15.
4. (b) 1
explanation:
There is only 1 term with x^2 that is 2.
5. (a) +,-
explanation:
Operations in the given expression are + and – only
6. (a) 2,x,x,y
explanation:
The numbers or variables that are multiplied to form a term are called its factors. Example, 5xy is a term with factors 5, x and y.
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