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Mathematics 18 Online
jnlkmnjkm:

math problem

jnlkmnjkm:

1 attachment
jnlkmnjkm:

(x+1)(x-2)

jnlkmnjkm:

0, 4

Florisalreadytaken:

sweet

jnlkmnjkm:

(0+1)(0-2)

Florisalreadytaken:

yes

jnlkmnjkm:

sorry whats next

Florisalreadytaken:

4 = a (0+1)(0-2)

Florisalreadytaken:

what?

jnlkmnjkm:

sorry whats next lol

Florisalreadytaken:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Florisalreadytaken 4 = a (0+1)(0-2) \(\color{#0cbb34}{\text{End of Quote}}\) 4 = a * 1 * -2

Florisalreadytaken:

so 4 = a * -2

jnlkmnjkm:

2 times -2 is negative 4 but thats my only guess

Florisalreadytaken:

no -- you divide it

Florisalreadytaken:

a = 4/-2

jnlkmnjkm:

-2

Florisalreadytaken:

yes -- so what does that tell us?

jnlkmnjkm:

a = -2

Florisalreadytaken:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Florisalreadytaken yes -- so what does that tell us? \(\color{#0cbb34}{\text{End of Quote}}\) ?

jnlkmnjkm:

im not sure

Florisalreadytaken:

we get y = -2 (x+1)(x-2)

jnlkmnjkm:

now simplify

jnlkmnjkm:

-2 + 1?

Florisalreadytaken:

what? no

Florisalreadytaken:

what we would get is -2x^2 + 2x + 4

jnlkmnjkm:

oh thats all

Florisalreadytaken:

that is it

jnlkmnjkm:

1 attachment
Florisalreadytaken:

odd -- did the earlier one turn out right?

jnlkmnjkm:

im not sure

jnlkmnjkm:

i have one last try

Florisalreadytaken:

am talking about the one we did be4

Florisalreadytaken:

did that turn out correct?

jnlkmnjkm:

yep

Florisalreadytaken:

then i see no reason why this is wrong -- lemme re-check

jnlkmnjkm:

alright

Florisalreadytaken:

ah you typed it wrongly!

jnlkmnjkm:

2x^2 and 2x^2 are identical

Florisalreadytaken:

its 2x^2 not 2z^2 haha!*

jnlkmnjkm:

LOL how'd you see it

Florisalreadytaken:

i did the whole equation thing from the beginning and i wasnt able to find a single mistake -- then i realised it was just you lol

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