Question

@johnweldon1993 @jmoney132 @justin_lane47 Factor the polynomial completely:
3x2 - 4x + 21


A)
(3x + 7)(x + 3)


B)
(x - 7)(3x - 3)


C)
(x - 3)(3x - 7)


D)
cannot be factored

Answer 1

mmm math isnt my strong suit hun sorry

Answer 2

what are you good at then

Answer 3

I can help

Answer 4

Since this is MC, its actually gonna be easier on your part. Do you know how to foil

Answer 5

yes but i dont like it

Answer 6

I know, anything like that isn't fun. However, we can FOIL your answer choices to see if any of them match up with 3x^2-4x+21

Answer 7

my only weak one is the algebra area

Answer 8

I got this @hammerhelm :-)

Answer 9

A)
(3x + 7)(x + 3) = 3x^2+9x+7x+21


B)
(x - 7)(3x - 3) 3x^2-3x-21x +21


C)
(x - 3)(3x - 7) 3x^2-7x-9z+21.


D)
cannot be factored

Answer 10

alright thanks girl ttyl i got another question asked by someone

Answer 11

3x2 - 4x + 21 This is what we are looking for.

Answer 12

(3x + 7)(x + 3) = 3x^2+9x+7x+21 =3x^2+16x+21. Nope.


B)
(x - 7)(3x - 3) 3x^2-3x-21x +21 3x^2-24x+21. Nope.


C)
(x - 3)(3x - 7) 3x^2-7x-9z+21. 3x^2-16x+21. Nope.

Answer 13

When I went to Tigermath.com for the facor form of this number, there was a radical in it. That is a little bit calculus to explain that. If you go here, you can see.
http://www.tiger-algebra.com/drill/3x~2-4x_21=0/

Answer 14

It can be factored, just the correct answer choice is not listed.