Question

Find the degree of the following terms.

(i) 5x²

(ii) -7ab

(iii) 12pq²r²

(iv) -125

(v) 3z

Answer 1

(i) 5x²

In 5x², the exponent is 2. Thus the degree of the expression is 2.

(ii) -7ab

In -7ab, the sum of powers of a and b is 2. (That is 1 + 1 = 2).

Thus the degree of the expression is 2.

(iii) 12pq²r²

In 12pq²r², the sum of powers of p, q and r is 5. (That is 1 +2 + 2 = 5).

Thus the degree of the expression is 5.

(iv) -125

Here – 125 is the constant term. Degree of constant term is 0.

∴ Degree of -125 is 0.

(v) 3z

The exponent is 3z is 1.

Thus the degree of the expression is 1.