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

PLEASE HELP ME QUICK EXPLANATION AND ANSWERS PLEASE IF ANY NONSENSE ANSWED YOU WILL BE REPORTED
Please answer correctly !!!! Will mark brainliest !!!!!
What's the meaning of this idiom? A different kettle of fish.
Use the chemical equation below to answer the following two questions. As(OH)3(aq) + H2SO4(aq) → As2(SO4)3(aq) + H2O(1) 3. When the above equation is balanced,
Estimate the difference to the nearest 10th 0.612-0.185
Express each equation in the form y = mx + b: 5x + y – 3 = 0
What is it called when the gravities of the Sun and Moon combine twice a month, to produce an extra-high tidal bulge and extra-low tidal dip helpppppppppp ppppp
What type of triangles does the Pythagorean Theorem apply to?
What are the causes of the Iraq-Iran war
An appliance store decreases the price of a​ 19-in. television set 25​% to a sale price of $ 474.75 . What was the original​ price?