Question

4. What method(s) would you choose to solve the equation? Explain your reasoning.

x2 –6x + 8 = 0 (1 point)
Square roots; there is no x-term.
Factoring; the equation is easily factored.
Quadratic formula, completing the square or graphing; the coefficient of x2-term is 1, but the equation cannot be factored.
Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large.

Answer 1

which one do you think it is?

Answer 2

ehhh i honestly dont know :\

Answer 3

can you find me two numbers that multiply to 8 AND add to -6 ?

Answer 4

Your tyna make me use my brain huh? lol

Answer 5

lol guilty

Answer 6

Can you just b sweet and tell me the answer (: pretty please.

Answer 7

I'll help you get there, but I cannot just give out the answer. It won't help you at all and it's against the rules anyway

Answer 8

lol ... ok ?

Answer 9

so what two numbers multiply to 8 and add to -6

Answer 10

any ideas?

Answer 11

is it C ?

Answer 12

notice how the two numbers

-2 and -4

both multiply to 8 AND they add to -6

Answer 13

so this suggests what?

Answer 14

yes , soooo

Answer 15

we're on the path to factoring x^2 - 6x + 8

Answer 16

so because the two numbers are -2 and -4, this means we get (x-2)(x-4)

Answer 17

okay okay i got it , its B (:

Answer 18

so x^2 - 6x + 8 factors to (x-2)(x-4)

Answer 19

this trick only works when the leading coefficient is 1

Answer 20

correct, it's B

Answer 21

thanks so much!

Answer 22

you're welcome