Question

Find the product of. (y +12)(y-20)​

Answer 1

Answer:

Step-by-step explanation:

$(y+12)(y-20) = y^2-20y+12y-240=y^2-8y-240$

Please refer to distributive laws for expansion if you want to understand workings more in-depth.

Hope it helps :)

Answer 2

Answer:

y² -8y - 240

Step-by-step explanation:

(y +12)(y-20)​

There are two ways of solving this. I will show you both.

1. Formula

(y +12)(y-20)​

(x+a) (x+b) = x²+ (a+b)x + ab

Here, x= y, a= 12, b= (-20)

= y² + ( 12 - 20 )y + (12)(-20)

=  y² + (-8)y + (-240)

= y² -8y - 240

2. Direct multiplication

(y +12)(y-20)​

= y(y-20) + 12(y-20)

= y² - 20y + 12y - 240

=  y² -8y - 240

         Hope it is helpful. Take care.