Prove that an 8x8 checkerboard with the square in position (1,3) , that is top row and third column from the left removed cannot be covered by 1x3 tiles. (Hint: color the 8x8 checkerboard, starting with the top left square with the colors b, y,r repeating this sequence (from top to bottom and left to right) until all squares are covered. Then remove the square in position (1,3); how many b, y,r squares are in your board

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

5 quiero

6 vamos

7 puedan

8 quiero

9pedemos

10 dorme

step-by-step explanation: