Question

solve (2a+b)^2-6a-3b-4

Answer 1

(2a+b)^2-6a-3b-4=
4a^2+4ab+b^2-6a-3b-4

Answer 2

Answer:

(2a + b + 1)(2a + b - 4)

Step-by-step explanation:

(2a + b)² - 6a - 3b - 4

(2a + b)² - 3(2a + b) - 4

y² - 3y - 4  [ put y = 2a + b ]

y² - 4y + y - 4  

y(y-4) + 1(y-4)

(y+1)(y-4)

(2a + b + 1)(2a + b - 4)