Question

I give medal and fan if you help me plz


Solve 2x2 - 9x + 7 = 0 using an appropriate method. Show the steps of your work and explain why you chose the method used.

Answer 1

@iambatman

Answer 2

i have no clue sorry

Answer 3

Factor/ quadratic equation

Answer 4

Okay so this is a quadratic equation.
\[2x ^{2}-9x+7=0\]

Answer 5

Yea it is

Answer 6

You can use this quadratic formula or you can factor normally, actually you can use complete the square as well, but I don't really suggest it for this problem.
Quadratic formula: \[ x = \frac{ -b \pm \sqrt{b^2-4ac} }{ 2a }\]

Answer 7

Ok

Answer 8

If you decide to factor you have to find a way to have the last two numbers in the parenthesis to multiply to 7 and add up to -9 after factoring out

Answer 9

Ok

Answer 10

@ganeshie8 im soo confused still

Answer 11

I think it would be more ideal to factor this problem. Just plug and chug. What multiples to 7
since it's prime it's gonna be just 7 & 1
Try plugging them in until you get the same equation
(2x(+or-)#)(x(+or-)#)

Answer 12

Theres 2 answers to this equation ik that