3 (15-6)+(18-12)^2=
3 (9) + (6)^2=
27 + 36 =
63
Answer:
(x - 9)(x + 9)
Step-by-step explanation:
x² - 81 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b), then
x² - 81
= x² - 9²
= (x - 9)(x + 9)
Answer:
i think 27777777777777/100000000000000
Step-by-step explanation:
Answer:
1/144 (decimal: 0.0069
4) the four is repeating.
Step-by-step explanation:
Answer:
21/2
Step-by-step explanation:
(x-8)/5=2/4
step 1 you simplify if you can to make it easier
(x-8)/5=1/2
step 2 multiply each side by 5
x-8=5/2
step 3 add each side by 8
x=5/2+8
16/2+5/2=21/2
x=21/2
