mikebramblett56 mikebramblett56

23-05-2016
Mathematics

contestada

What substitution should be used to rewrite 6(x + 5)2 + 5(x + 5) – 4 = 0 as a quadratic equation? u = (x + 5) u = (x – 5) u = (x + 5)2 u = (x – 5)2

Respuesta :

meerkat18 meerkat18

31-05-2016

6(x+5)² + 5(x+5)-4 = 0

(x+5)(x+5) = x(x+5)+5(x+5) = x² + 5x + 5x + 25 = x² + 10x + 25

6(x²+10x+25) + 5(x+5) - 4 = 0
6x² + 60x + 150 + 5x + 25 - 4 = 0
6x² + 60x + 5x + 150 + 25 - 4 = 0
6x² + 65x + 171 = 0

u = (x + 5)

Answer Link

28-10-2020

Answer:

A: u = (x + 5)

Edg 2020

Answer Link

Otras preguntas

Why is important to simplify a fraction ?

BRAINLIST: The temperature is -3.5 degrees Fahrenheit at 7:00 am. During the next 4 hours, the temperature decreases by -15.5 degrees. What is the temperature

3(1 - 39) = -89 + 14

The water level in a pool drops 8 iches in a day so what is the average level drop in each hour

At the Tucson Zoo, Jason spends $6.00 to enter the zoo and $2.00 per animal to feed them. Meanwhile, at the Phoenix Zoo, Kim spends $15.00 to enter and $1.00 pe

Find value of X (Show steps on how to solve)

Each electron in an atom has a charge of -1. What us the overall charge of an atom that contains 2 electrons and 2 protons. A: +4 B: -2. C: 0. D: +2

The water level in a pool drops 8 iches in a day so what is the average level drop in each hour

You have decided to organize your presentation by presenting the events in the order they happened. What is this type of organization called? chronological caus

135 pizzas cost $1,405, how much does just 1 pizza cost?