Question

5b=2a 9b=a+4 find the lines​

Answer 1

Answer:

(2a + 3b)(6a + 9b)

Simplifying

(2a + 3b)(6a + 9b)

Multiply (2a + 3b) * (6a + 9b)

(2a * (6a + 9b) + 3b * (6a + 9b))

((6a * 2a + 9b * 2a) + 3b * (6a + 9b))

Reorder the terms:

((18ab + 12a2) + 3b * (6a + 9b))

((18ab + 12a2) + 3b * (6a + 9b))

(18ab + 12a2 + (6a * 3b + 9b * 3b))

(18ab + 12a2 + (18ab + 27b2))

Reorder the terms:

(18ab + 18ab + 12a2 + 27b2)

Combine like terms: 18ab + 18ab = 36ab

(36ab + 12a2 + 27b2)