Square ABCD is shown with four congruent images such that ABCD Is congruent to FGHI Is congruent to JKLM Is congruent to NOPQ Is congruent to RSTU. On a coordinate plane, triangle A B C D is reflected across the x-axis to form triangle R S T U.

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

a. positive: 2 or 0; negative : 2 or 0; complex: 4or2or0