Question

Identify like terms in the following:
$-x{y}^2$, $-4y{x}^2$, $8x^2$, $2x{y}^2$, $7y$, $-11x^2$, $-100x$, $-11yx$, $20x^{2}y$, $-6x^2$, $y$, $2xy$, $3x$

Answer 1

Like terms should have the same variables with the same exponents Here, the groups of like terms are:
(i) $-x{y}^2$, $2x{y}^2$
(ii) $-4y{x}^2$, $20x^{2}y$
(iii) $8x^2$, $-11x^2$, $-6x^2$
(iv) $7y$, $y$
(v) $-100x$, $3x$
(vi) $-11yx$, $2xy$