Answer:
1/216
Step-by-step explanation:
1/6x1/6x1/6=1/216
(look at picture below)
a. a×3= -30
a= -30-3
a= 33
(x - 10)(x + 10)
x² - 100 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
x² - 100
= x² - 10²
= (x - 10)(x + 10)
