Question

r²+u+ 12 rey + y + 27%
oll Factorize each of the following

expressions completely
a) a² +3 ab+4b²​

Answer 1

Answer:

(a+4b)(a-b)

Step-by-step explanation:

a²+3ab+3b²

a²+4ab-ab+3b² {since, 3ab can be written as 4ab-ab}

a(a+4b)-b(a+4b)

(a+4b)(a-b)