1.

Which of the following are like terms?(a) 5xyz2, – 3xy2z (b) – 5xyz2, 7xyz2(c) 5xyz2, 5x2yz (d) 5xyz2, x2y2z2

Answer»

(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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