Question

If p=2, q=-1,Find the value of (i) 3p+2q (ii) 3pq​

Answer 1

Answer:

I) 3×2+2×1 = 6+3 = 9

ii) 3×2×1 = 6

Answer 2

Answer:

i) 4

ii) -6

Step-by-step explanation:

i) We know that

$p = 2 \\ q = - 1$

Given that,

$3p + 2q \\ = (3 \times p) \: + (2 \: \times q) \\ = (3 \times 2) \: + (2 \times ( - 1)) \\ = 6 \: + ( - 2) \\ = 6 - 2 \\ = 4$

ii) We know that,

$p = 2 \\ q = - 1$

Given that,

$3pq \\ = 3 \times p \times q \\ = 3 \times 2 \times ( - 1) \\ = 6 \times ( - 1) \\ = - 6$

Hope it helps