williamthrashersyi
williamthrashersyi williamthrashersyi
  • 23-11-2020
  • Mathematics
contestada

x^2 + 7x – 18 = 0
a
{–2, 9}
b
{–9, 2}
c
{2, 9}
d
{–2, –9}

Respuesta :

Аноним Аноним
  • 23-11-2020

Answer:

b)-9,2

Step-by-step explanation:

x^2+7x-18=0

x^2+9x-2x-18=0

x(x+9)-2(x+9)=0

(x+9)(x-2)=0

therefore

x=-9

x=2

Answer Link

Otras preguntas

What’s the value of x?
The radioactive substance uranium-240 has a half-life of 14 hours. The amount At of a sample of uranium-240 remaining (in grams) after t hours is given by the f
A sample of 15 from a normal population yields a sample mean of 43 and a sample standard deviation of 4.7. What is the P—value that should be used to test the c
An Urn contains two white marbles and one black marble. A marble is drawn from the Urn without replacement and put aside without my seeing it. Then a second mar
​______ early decisions significantly affect the way an entrepreneurial venture is received and the manner in which the​ new-venture team takes shape.
Describe the relationship between the two quantities. Distance traveled by car; Amount of gas in the car. a. inverse c. joint b. direct d. compound Please selec
write two function of pituitary gland​
What is the product (3x-6)(2x2-7x+1)
If an item costs a store x dollers to buy and can be sold at y dollars, what percentage of the sale price is profit? Percentage of the sale price = [profit/sale
Jessica used 2/3 yard of fabric to make a scarf.can she make 2 of these scarves with 1 3/4 yards of fabric, and why?. I need help please I’ve been trying to do