Answer:225
Step-by-step explanation:
This is a perfect square trnomial
(a+b)²=a²+2ab+b²
we see that a=5x and b=2
(5x)²+2(5x)(2)+2²=0
factor
(5x+2)²=0
set equal to zero
5x+2=0
5x=-2
x=-2/5
Answer:
Wouldn't be 100% since all the numbers on a standard number cube are less than 7?
Step-by-step explanation:
............ ........... .
31/36 is the correct answer
