Question:
Which of the following are like terms?
(a) 5xyz2, – 3xy2z
(b) – 5xyz2, 7xyz2
(c) 5xyz2, 5x2yz
(d) 5xyz2, x2y2z2
Solution:
(b) – 5xyz2, 7xyz2
Like terms are formed from the same variables and the powers of these variables are also the same. But coefficients of like terms need not be the same.
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