Question

Add: 5p - 7q, 3q - 4p + 12, 6q - 13pq - 15 .

Answer 1

p + 2q - 13pq - 3

Explanation:

Now we have to,

→ Add the following expressions.

The expressions are,

→ 5p - 7q, 3q - 4p + 12, 6q - 13pq - 15

Let's solve the problem,

→ (5p - 7q) + (3q - 4p + 12) + (6q - 13pq - 15)

→ 5p - 7q + 3q - 4p + 12 + 6q - 13pq - 15

→ (5p - 4p) + (-7q + 3q + 6q) + (-13pq) + (12 - 15)

→ (p) + (2q) + (-13pq) + (-3)

→ p + 2q - 13pq - 3

Hence, answer is p + 2q - 13pq - 3.

Answer 2

(5p - 7q) + (3q - 4p + 12) + (6q - 13pq - 15)

Open brackets

5p - 7q + 3q - 4p + 12 + 6q - 13pq - 15

Combine like terms,

5p - 4p - 7q + 3q + 6q - 13pq + 12 - 15

p + 2q - 13pq - 3

Thus, The answer is (p + 2q - 13pq - 3)