Factorising polynomials

What is the least common multiple of 2x and 3x^2?

• 5x^2

• 9x^2

• 6x^2

• 12x^2

Factoring using GCF: $3x^3-12x^2+15x$  

•  $3x\left(x^2-4x+3\right)$  
  

•  $3x\left(x^2-12x+15\right)$  
  

•  $3x\left(x-4\right)$  
  

•  $x\left(3x^2-12x+15\right)$  
  

What is the least common multiple of

3x²-27 and 5x²+10x-75?

• 3(x + 3)(x – 3)(x + 5)

• 15(x + 3)(x + 3)(x + 5)

• 15(x + 3)(x – 3)(x + 5)

• 5(x + 3)(x – 3)(x + 5)

Factor using G.C.F. 2x⁴y - 10x²

• 2x²(x²y - 5)

• 2x(x³y - 5x)

• 2(x⁴y - 5x²)

• x²(2x²y - 5)

Factor completely.
4b⁵+4b³+16b²

• 4b³(b⁴+b²+4b)
• 4b³(b⁴+4b+5)
• 4(b⁵+b³+4b²)
• 4b²(b³+b+4)

What is the GCF?
8a⁴ + 24a³ - 40a²

• 8a²
• 6a²
• 8a
• 8

• The GCF is 1 because the polynomial is prime.

Find the GCF of 7x³y and 14x⁴y²

• 14x³y
• 7x³y
• 7x⁴y²
• 14x⁴y²

What is the GCF of 20x and 30?

• 5
• 2
• 10
• 20

6x⁵y⁴+24x⁶y²-36x³y^{3
Find the GCF}

• 6x³y²
• 6xy