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# HELP ME OUT PLEASE SOLVE IT.......................................................

Find the Greatest common factor

(1)  a^8b^3c^4,a^5bc^2,a^3b^4c^5

(2) 27x^5,24x^11

I have solved this question which I got 3 as my GCF but am not sure of it

(3) Factor the GCF out of this given expression

11x^5-33x^3

(4) Factor the GCF out of this given expression
15x^2-9x-3

### 3 Answers by Expert Tutors

Parviz F. | Mathematics professor at Community CollegesMathematics professor at Community Colle...
4.8 4.8 (4 lesson ratings) (4)
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a8 b3 c4

a5 b c2

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LCM --- product of common factors with highest exponent : a8 b3 c4 ( in this case is the 1st number).

GCF ---- Product of the common factors with lowest exponent : a5 b c2 ( in this case is the 2nd Number).
Since the 2nd number is divisible
by first)
2) 27 X5  = 33. 20 X5
LCM = 23 . 33 X11 = 216 X11
24 X11 = 23 . 3 X11
GCF  = 3 X5

William S. | Experienced scientist, mathematician and instructor - WilliamExperienced scientist, mathematician and...
4.4 4.4 (10 lesson ratings) (10)
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1. a8b3c4  and a5bc2a3b4c5
⇓
a8bc2(b*b3)(c*c4)

a8b3c4 and a8b3c4(bc2)(b)(c)

2. 27x5, 24x11

(3)(3)(3)x5 and (2)(2)(3)(4)(x5)(x6)

3. 11x5-33x3 ⇒ 11(x2)(x3) - (3)(11)(x3)

4. 15x2-9x-3 = 3(5x2 - 3x - 1)
Jason S. | My goal is the success of my students. Knowledge-Patience-HonestyMy goal is the success of my students. K...
4.9 4.9 (115 lesson ratings) (115)
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1) a^3bc^2

2) 3x^5

3) 11x^3, since 11x^3(x^2 - 3)

4) 3, since 3(5x^2 -3x -1)