What is the answer to the math problem 17-12=8+?

17 -12 = 8 + x

(x= to the unknown number)

17 - 12 = 8 + x = 5

8 + x = 5

8 - 8 + x = 5 - 8

x = 5 - 8

x = -3

Hope this helps!

Step-by-step explanation:

17 - 12 = 8 + x

5 = 8 + x

5 - 8 = x

-3 = x

17 - 12 = 8 + (-3)

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