Advertisements
Advertisements
Question
Identify the term, their coefficients for the following expression:
7x2yz − 5xy
Solution
Definitions:
A term in an algebraic expression can be a constant, a variable or a product of constants and variables separated by the signs of addition (+) or subtraction (\[-\] ) . Examples: 27, x, xyz, \[\frac{1}{2} x^2 yz\] etc.
The number factor of the term is called its coefficient.
The expression
\[7 x^2 yz - 5xy\] consists of two terms, i.e.,
\[7 x^2 yz\] and \[- 5xy\].
The coefficient of \[7 x^2 yz\] is 7 and the coefficient of \[- 5xy\] is \[- 5\].
APPEARS IN
RELATED QUESTIONS
Identify the term, their coefficients for the following expression:
0.2x − 0.3xy + 0.5y
Group the like term together: 7p, 8pq, – 5pq – 2p and 3p
In -5x3y2z4 ; write the coefficient of x3y. Also, write the degree of the given algebraic expression.
Add : 23y2 , 8y2 and – 12y2
Find the sum of: a2 + b2 + 2ab, 2b2 + c2 + 2bc and 4c2 -a2 + 2ac
Subtract the second expression from the first:
−2b + 2c, b + 3c
Subtract the second expression from the first:
3a2 - 8ab - 2b2 , 3a2 - 4ab + 6b2
Simplify: `8"x" - ["4y" - {"4x" + ("2x" - bar"2y - 2x")}]`
(9x – 51) ÷ 9 is x – 51.
3x + 23x2 + 6y2 + 2x + y2 + ______ = 5x + 7y2.