Answer:
<h2>b. (144 + 121)(144 - 121)</h2>
Step-by-step explanation:
Use a² - b² = (a + b)(a - b)
144² - 121² = (144 + 121)(144 - 121)
A) multiple the 3 x 4 and add 1.
3 x 4 = 12 + 1 = 13
13/3
B) (7 x 3) + 2 = 23/3
C) (4 x 2) + 1 = 9/2
D) (2 x 8) + 7 = 23/8
<span>2x-5y=-6
8x+3y=68
|x y +1|
|2 -5 6| = 0
|8 3 -68|
DET = 6+40 = 46
x*DET = 340-18
x = 7
-y*DET = -136-48
y = 4
</span>