Step-by-step explanation:
length = 5×width + 1
perimeter = 2×length + 2×width =
= 2×(5×width + 1) + 2×width =
= 10×width + 2 + 2×width = 12×width + 2
Answer:
225/4
x²– 15x – 23 = 0
To complete the square
We take to coefficient of the x term
-15
divide by 2
-15/2
Square it
Add it to each term
i think it is 1/4
