nyaaawallace
nyaaawallace
22-03-2017
Mathematics
contestada
x^2 + 18x + c = 25 +c
Respuesta :
Abu99
Abu99
22-03-2017
Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
(x + 9)^2 -81 -25 = 0
(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
x = -9 + and - sqrt(106)
Answer Link
VER TODAS LAS RESPUESTAS ( 73+ )
Otras preguntas
descriptive paragraph on making a friend 3- 5 sentences wil be named as brainliest!!!
This is for one hundred points upload your presentation about the stem field containing the following: a title career inventory results from the career interest
what is the measure of angle 7 ?
can someone help me plss the deadline is tmrw
Oscar finds an organism that turns inorganic carbon into organic carbon. What is this process AND what type of organism did Oscar find?
100 PTS PLEASE HELP ATTACHMENTS ARE ATTACHED! THIS IS DUE IN A HOUR Which phrase best completes the diagram? Physical features of western Europe Few remaining
What do the depositional plains and the erosional plains have in common
Write an equation to describe the situation. A student allows 1/10 of her monthly income for books and 1/8 of her monthly income for clothing. If she budgets a
Il give people 50 points If they do this please
A circular ring has a diameter of 20 meters, find its circumference.
