Question

factorise a2 - b2-a - b.​

Answer 1

Answer:

$\Huge \boxed{A-3b}$

Step-by-step explanation:

$\large \textnormal{To solve this problem, first you have to use factorize of \boxed{a2-b2-a-b}}.$

$\large\textnormal{First, rewrite the problem down. Combined (group like terms).}$

$\displaystyle a*2-b*2-a-b$

$\large\textnormal{Next, add similar to elements from left to right.}$

$\displaystyle 2a-a=a$

$\displaystyle a-2b-b$

$\large\textnormal{Then, solve.}$

$\displaystyle -2b-b=\boxed{-3b}$

$\bigstar\large\boxed{\textnormal{Finally, the correct answer is \boxed{a-3b}.}}\bigstar$