Q4Multiple choice
A system is a group of related objects. What do you think a system of equations is? In questions 1 to 33, there are four options out of which one is correct. Write the correct answer. 1. The product of a monomial and a binomial is a
- (a)monomial
- (b)binomial
- (c)trinomial
- (d)none of these 2. In a polynomial, the exponents of the variables are always (a) integers (b) positive integers (c) non-negative integers (d) non-positive integers 3. Which of the following is correct? (a) (a – b)2 = a2 + 2ab – b2 (b) (a – b)2 = a2 – 2ab + b2 (c) (a – b)2 = a2 – b2 (d) (a + b)2 = a2 + 2ab – b2 4. The sum of –7pq and 2pq is (a) –9pq (b) 9pq (c) 5pq (d) – 5pq
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(d) none of these 2. In a polynomial, the exponents of the variables are always (a) integers (b) positive integers (c) non-negative integers (d) non-positive integers 3. Which of the following is correct? (a) (a – b)2 = a2 + 2ab – b2 (b) (a – b)2 = a2 – 2ab + b2 (c) (a – b)2 = a2 – b2 (d) (a + b)2 = a2 + 2ab – b2 4. The sum of –7pq and 2pq is (a) –9pq (b) 9pq (c) 5pq (d) – 5pq