angelliu11
angelliu11 angelliu11
  • 01-08-2017
  • Mathematics
contestada

What is the solution set of the equation x^2 - 7x - 18 = 0

Respuesta :

lovewithcompass
lovewithcompass lovewithcompass
  • 08-08-2017
(x-9)(x+2)=0
x=9 or x=-2
Answer Link
TheBlueFox
TheBlueFox TheBlueFox
  • 31-05-2020

Factoring this trinomial as the product of two binomials,

we have (x - 9)(x + 2) and set that equal to 0.

So we have (x - 9)(x + 2) = 0.

So either x - 9 = 0 or x + 2 = 0.

Solving for x in each equation, we find that our solution is {9, -2}.

Answer Link

Otras preguntas

The base of right prism is rhombus of diagonal is 6 and 8cm and altitude is 12 cm find total surface area
A history quiz consists of five true-false questions. If you guess on each question, then the probability of answering all five questions correctly is approxima
Buck drove 220 miles in 5 hours. What was his average rate of speed?
The process by which rocks are broken down into smaller fragments by the atmosphere and other factors in the environment is called?
what is the cause and effect for the french citizens armies win their revolution for liberty and equality
What is the coefficient of y in the expression 12+3y-2x?
solve 2/3 + 1/4x = 1/3
Al washed a car in 6 minutes. Fred washes the same car in 8 min. How long dies it take Al and Fred to wash the car together?
The circumference of a circle is 6.28.What is the area of the circle?
The dimensions of a brick that weighs 25 N are 0.19 m × 0.07 m × 0.095 m. What pressure does the brick exert on the ground if it is resting on its largest face?