Question

Solve this by factoring??

y = -0.35x^2 + 0.994x + 2.77426

Answer 1

can you explain why i can't use factoring

Answer 2

please :]

Answer 3

that's a quadratic formula problem.

Answer 4

but why couldn't i factor

Answer 5

you can factor.

Answer 6

.-.

Answer 7

what do you mean

Answer 8

i'm laughing too

Answer 9

i am using my ipad and the display is messed up

Answer 10

i'm so confused *tear rolls slowly down cheek*

Answer 11

x=−1.7332296368734617 x=4.573229636873461

Answer 12

i know what the answers are, i just need to know if it can be solved by factoring, and if not, why

Answer 13

technically it can, but i wouldn't suggest in trying to do it.

Answer 14

can you show me how

Answer 15

@rosho don leave me

Answer 16

doing two problems at the same time. anyways, do you the quadratic formula?

Answer 17

yea but i gotta factor it...nvm...could i solve it by "completing the square"?

Answer 18

you can solve it by using many methods, but what does your teacher mean by factoring it?

Answer 19

i guess by finding the two numbers whose product is b and sum is c??

Answer 20

like that kinda factoring??

Answer 21

i don't think that would be possible without the quadratic formula.

Answer 22

"show the solutions, or x-intercepts, of the parabola found algebraically by factoring, using the quadratic formula and completing the square. If one of these methods cannot be used, a complete sentence explaining why."

Answer 23

completing the squre may be used

Answer 24

if you can turn them int a whole number then you have a shot, but you're giving yourself more work

Answer 25

oh, i just did the quadratic formula.

Answer 26

http://www.mathwarehouse.com/quadratic/quadratic-formula-calculator.php

Answer 27

idk what i should put down T-T

WHAT DO THEY WANT FROM ME (╯°□°）╯︵ ┻━┻

Answer 28

just say it is difficult to factor a non-whole number coefficient in the first term

Answer 29

can you turn that equation into standard quadratic function?

Answer 30

wat

Answer 31

I wouldn't even bother LAUGHING OUT LOUD

Answer 32

just enter in the values of a, b, and c into that calculator or graph the function, and solve for x and the complete square is the vertex, and then plug the values of A,Y into this formula A+(Y+X)^2

Answer 33

\[y=-0.35(x^2-2.84x-7.926)\\
y=-0.35(x-a)(x-b)\]

Answer 34

one thing for sure
only the bigger one is negative
say |a|>|b|
then "a" is negative and "b" is positive

Answer 35

sorry, I should have put
y=-0.35(x+a)(x+b)

Answer 36

ya.... f(x) = a(x-h)^2 + k, a not equal to zero

Answer 37

the f(x) is your y = ...

Answer 38

also
\(|a|>2.84>|b|\)

Answer 39

so, you may scan for some values to the left and right..

Answer 40

since
\[y'=-0.35(2x-2.84)\]
and "y" has a minimum at "x=1.42"

Answer 41

I am missing something ....

Answer 42

you didn't show how you got -7.926

Answer 43

I factoerd out the -0.37

Answer 44

also @aripotta you do not have to use any numerical methods, right?