Which of the following are like terms?
(a) 5xyz², - 3xy²z
(b) - 5xyz², 7xyz²
(c) 5xyz², 5x²yz
(d) 5xyz², x²y²z²
Solution:
Correct option is (b).
Like terms are formed from the same variables and the powers of these variables are also the same but the coefficients of like terms need not be the same.
✦ Try This: Group the like terms of the following (i) 7xy, (ii) - 6x², (iii) 7a³b³, (iv) -17xy, (v) 3abc, (vi) 25x², (vii)-4abc, (viii) 69a³b³
Like terms are formed from the same variables and the powers of these variables are also the same but the coefficients of like terms need not be the same.
Therefore, the terms can be grouped as follows:
→ 7xy and -17xy
→ - 6x² and 25x²
→ 7a³b³ and 69a³b³
→ 3abc and -4abc are like terms.
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 9
NCERT Exemplar Class 8 Maths Chapter 7 Problem 14
Which of the following are like terms? (a) 5xyz², - 3xy²z (b) - 5xyz², 7xyz² (c) 5xyz², 5x²yz (d) 5xyz², x²y²z²
Summary:
From the given terms (a) 5xyz², - 3xy²z (b) - 5xyz², 7xyz² (c) 5xyz², 5x²yz (d) 5xyz², x²y²z², the like terms are - 5xyz², 7xyz²
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