Question

(a+2) (a-1)
(m-4) (m+6)
(13+x) (13-x)​

Answer 1

Answer:

1)a^2+a-2

2)m^2+2m-24

3)169-x

Step-by-step explanation:

1). multiple (a*a)+(-a)+(2a)+(-2)

a^2-a+2a-2

a^2+a-2

2) multiply (m*m)+(m*6)+(-4m)+(-24)

it will be m^2+6m-4m-24

m^2+2m-24

3) Use formula { (a+b)(a-b)}

it will be 13^2 -x^2

169-x^2