Multiple 6 with numbers inside paranthesis:
12x - 66 + 15 = 21
add 66 fhen substrack 15 from both sides :
12x = 72 divide both sides with 12:
x = 6
Answer:
personally i would use a.
Step-by-step explanation:
this is my answer and opinion btw
Jan's age = 
years
Sister's age =
Step-by-step explanation:
Jan's age = x years
Sister's age = 2x years
Brother's age = 3x years
According to the given condition:
x + 2x + 3x = 29
6x = 29
x = 29/6
x = years
2x = 
Therefore,
Jan's age = years
Sister's age =
Equilateral triangle
Explanation:
All of the sides are equal
Answer: the fourth option (5p - 2)(5p + 2) (5p - 2i) (5p + 2i)
Explanation:
1) Express the given expression as the difference of two squares:
625p⁴ - 16 = (25p²)² - 4²
2) Factor as the product of a sum times its difference:
(25p²)² - 4² = (25p² - 4) (25p² + 4)
3) Factor each binomial (again square of a difference and sum times its difference):
25p² - 4 = (5p)² - 2² = (5p - 2)(5p + 2)
25p² + 4 = (5p)² - (2i)² = (5p - 2i)(5p + 2i)
4) Therefore, the 4 factors are:
(5p - 2)(5p + 2) (5p - 2i) (5p + 2i)
