HELP SNOG OR WHOEVER (x+3)(y-19)

xy-19x+3y-57

Step-by-step explanation:

Once again, FOIL is the way to go!

First, Outside, Inside, Last

xy-19x+3y-57

xy-19x+3y-57

Step-by-step explanation:

(x+3)(y-19)

FOIL

first: xy

outer: -19x

inner 3y

last  -57

Add them together

xy-19x+3y-57

need more information

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct