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Mathematics 15 Online
zarkam21:

Helppp

zarkam21:

1 attachment
zarkam21:

1 attachment
zarkam21:

first one is b right?

zarkam21:

@Vocaloid

Vocaloid:

-36 is the constant term to get a negative product, one factor must be positive and the other factor must be negative ex (-9)*(4) = -36 so C not B

zarkam21:

okay so for part II

zarkam21:

1, 2, 3, 4, 6, 9, 12, 18, 36

Vocaloid:

good but i would imagine they want them in pairs, so 1*36 2*18 3*12... etc until you get to 6*6

Vocaloid:

1*36 2*18 3*12 4*9 6*6 that should be it I think , unless you want to list out the reverse combinations to get 9*4 12*3, etc.

zarkam21:

no i think this is okay

zarkam21:

now part III

Vocaloid:

alright, for part III we need to find two factors that add up to -5 you must add a negative sign in front of one of the factors to accomplish this

zarkam21:

so any two numbers that equal -5

Vocaloid:

they must add up to -5, yes

zarkam21:

-8+3

Vocaloid:

8*3 does not multiply to get 36 so it is not an eligible factor pair

Vocaloid:

1*36 2*18 3*12 4*9 6*6 ^ these are your possible choices

zarkam21:

-4+9

zarkam21:

wait hold on

zarkam21:

-9+4

Vocaloid:

good, so that's your factor pair for part III, -9 * 4

zarkam21:

okay part IV

Vocaloid:

we fill in the blanks of (x + __)(x+ __) to get your factored form putting -9 and 4 in gives us (x-9)(x+4) = your answer

Vocaloid:

anyway for part V they want you to solve using the zero product property meaning that you must set each factor equal to 0 to solve so x - 9 = 0 x + 4 = 0 solve for both values of x.

zarkam21:

x=9 x=-4

Vocaloid:

good so that's part V, x = 9 and x = -4

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