olivia3973
olivia3973 olivia3973
  • 20-10-2020
  • Mathematics
contestada

11. 2x2 -50 = x^2 -1 solve by factoring

Respuesta :

ilikewateryesido
ilikewateryesido ilikewateryesido
  • 20-10-2020

Answer:

I think Its either x=7 or x=−7

Hope this helps! :)

Step-by-step explanation:

Let's solve your equation step-by-step.

2x2−50=x2−1

Step 1: Subtract x^2 from both sides.

2x2−50−x2=x2−1−x2

x2−50=−1

Step 2: Add 50 to both sides.

x2−50+50=−1+50

x2=49

Step 3: Take square root.

x=±√49

x=7 or x=−7

Answer Link
Аноним Аноним
  • 20-10-2020

Answer:

(

2

x

2

−

18

)

=

(

x

√

2

+

√

18

)

(

x

√

2

−

√

18

)

=

=

(

x

√

2

+

√

9

⋅

2

)

(

x

√

2

−

√

9

⋅

2

)

=

=

(

x

√

2

+

3

√

2

)

(

x

√

2

−

3

√

2

)

=

=

√

2

(

x

+

3

)

√

2

(

x

−

3

)

=

2

(

x

+

3

)

(

x

−

3

)

Step-by-step explanation:

Answer Link

Otras preguntas

8 1/5 - 3 4/10= show your work
Using an example, explain how small atoms are.
Number 23 please show me how to do it and the answer
How are decomposers useful
There are 638 students at a museum. All the students will tour the museum in groups of up to 6 students. What is the smallest number of tour groups that can b
How is India connected to the world through the sea routes? What are its benefits ?
how to solve 12ax-2ax+14x-2a+ -3x
Which of these would most likely cause a mutation? A the placement of ribosomes on the endoplasmic reticulum B the insertion of a nucleotide into DNA C the m
If a leaf branch of a healthy potted plant is covered a polythene bag tiny water droplets are seen .why does this happen ? Which part of the leaf is responsible
Is it possible for a single cell to be a living organism?