factorisation

The factorisation of 4x + 16 is _______

• 4(x + 4)
• 4(x - 4)
• x + 4
• 4x + 4

Tags

CCSS.7.EE.A.1

The factorization of (x³ - 25 x) is ______

• x (x - 5)²
• x (x + 5)²
• x (x + 5) (x - 5) 
• None of these

Choose the correct answer:
a² + bc + ab + ac = ______

• (a + b) (a + c)
• (a + b) (b + c)
• (a + c) (b + c)
• a (a + b + c)

Tags

CCSS.HSA.APR.A.1

Choose the correct answer:
The factorisation of 25x²y - 5xy is  

• 5xy (5x - 1)
• 5xy (5x + 1)
• 5xy (5x + 5)
• 5xy (x - y)

On factorising 14pq + 35pqr, we get:

• pq(14+35r)

• p(14q+35qr)

• q(14p+35pr)

• 7pq(2+5r)

The factors of 6xy – 4y + 6 – 9x are:

• (3x + 2) (2y + 3)

• (3x – 2) (2y – 3)

• 3x – 2) (2y + 3)

• (3x –+2) (2y – 3)

The factors of

 $4y^2–12y+9\ is:$  

•   $\left(2y+3\right)^2$  

•  $\left(2y-3\right)^2$  

• (2y-3)(2y+3)

• None of the above

Tags

CCSS.HSA.APR.C.4

Factorise  $a^2-4a$  

•  $a-4$  

•  $-3a$  

•  $a\left(a-4\right)$  

•  $3a^2$  

Factorise  $8b^2+6b$  

•  $b\left(8b+6\right)$  

•  $2b\left(4b+3\right)$  

•  $2b^2\left(4b+3\right)$  

•  $14b^3$  

Factorise $64-9k^2$  

•  $\left(8+9k\right)\left(8-9k\right)$  

•  $\left(8-9k\right)\left(8-9k\right)$  

•  $\left(8+3k\right)\left(8-3k\right)$  

•  $\left(8+3k\right)\left(8+3k\right)$