jenniferreallylikeda jenniferreallylikeda
  • 10-07-2020
  • Mathematics
contestada

Which of the following are solutions to the quadratic equation? Check all that
apply.
2x2 + 7x- 14 = x2 + 4

Respuesta :

Alfpfeu
Alfpfeu Alfpfeu
  • 10-07-2020

Answer:

[tex]\boxed{\sf \ \ \ x=-9 \ \ or \ \ x=2 \ \ \ }[/tex]

Step-by-step explanation:

hello,

[tex]2x^2+7x-14=x^2+4\\<=> 2x^2+7x-14-x^2-4=0\\<=> x^2+7x-18=0\\<=>x^2-2x+9x-18=0\\<=> x(x-2)+9(x-2)=0\\<=> (x+9)(x-2)=0\\<=> x+9 = 0 \ \text{or} \ x-2=0\\<=> x = -9 \ \text{or} \ x=2[/tex]

hope this helps

Answer Link

Otras preguntas

The man responsible for devising the modern scientific classification system still in use today is ______ .a. Carolus Linnaeusb. Sir Harry Johnstonc. Albert E
Many inherited disorders of humans appear in children of parents who do not have the disorder. How can you explain this?
Is 2,-5,-12,-19,-26 an arithmetic sequence
You apply to 20 graduate programs, 10 of which are in clinical psychology, 5 of which are in counseling, and 5 of which are in social work. You receive a
find the buying price of each of the following when 5% sales tax is added on the purchase of;1. a pillow for RS. 60 2. two bars of soap at RS.25 each
The man responsible for devising the modern scientific classification system still in use today is ______ .a. Carolus Linnaeusb. Sir Harry Johnstonc. Albert E
how is groundwater formed?
What would happen if cytokinesis took place before mitosis?
find decimal notation. 0.6%=
What property justifies the following statement?If 4x+6=20, then 4x=14.