Answer:
x2 + 10x +25 = (x+5)^2
Step-by-step explanation:
x^2 + 10x
To complete the square
Take the coefficient of x
10
Divide by 2
10/2 =5
Square it
5^2 =25
Add it
x2 + 10x +25
The coefficient of x divided by 2 is the factor we add to x inside the square
(x+5)^2
24a ^ 2-6a-9.
you should do in this case is to see the terms that are repeated in the expression.
WE have then that the terms are a and the multiples of 3.
Making a common factor we have:
24a ^ 2-6a-9.
3 (8a ^ 2-2a-3).
3 (a (8a-2) -3)
Answer:
The equivalent expression is:3 (a (8a-2) -3)
Answer: It would be the number 1 since they all cancel each other out
Step-by-step explanation:
Answer:
An equation for this would be : 36=3+x+3+X+5+5
the simplified version would be: 20=2x
The value of x = 10 feet
Step-by-step explanation:
Since perimeter is all the sides added together, and 36 ft is the perimeter,
think of a rectangle, 2 sides would be 3+x and the other 2 would be 5.
thus,
36=3+x+3+x+5+5
now add all like terms and you get 36=16+2x
subtracting 16 on both sides,
20=2x
dividing by 2 both sides,
x=10 feet.
