Answer:
x=2
Step-by-step explanation:
use distributive property: x^2+2x-1=4
remove the -1 by adding 1 on both sides: x^2+2x=5
use the guadratic fromula: ax²+bx+c=0
plug in the equation x^2+2x-5=0
a,b and c are the coefficients to plug into the formula
a=1, b=2, c=-1
Finally, you will find that x=2
Answer:

Step-by-step explanation:
We have been given the equation

Take square root both sides. When ever we take square root, we include plus minus sign

Now, subtract 6 to both sides of the equation

Divide both sides by 5


In decimal we have

Answer:
60 words per minute
Step-by-step explanation:
"per" means "divided by" in this context. When you want "words per minute", it means you want the number of words divided by the corresponding number of minutes:
... (900 words)/(15 minutes) = 60 words/minute
Answe
Step-by-step explanation:
cuanto es 3,072 en fraccion ?