Math Factorization

20x³-25x²+4x-5

• (5x²-5)(4x+1)

• 5(x²-1)(4x+5)

• (5x²+1)(4x-5)

• (5x²+1)(4x-1)

x² - 400

• ( x - 200) ( x + 200) 

• ( x + 20) ( x + 20) 

• Prime

• ( x - 20) ( x + 20) 

What are the solutions to this equation?
(3x-2)(5x+1)=0

• x=5/2,-1/3

• x=1/5,-2/3

• x=1/3,-5/2

• x=2/3,-1/5

The factorisation of 12x+36 is

• 12(x+3)

• 12(3x)

• 12(3x+1)

• x(12+36x)

When we factorise x²+5x+6, then we get:

• (x +2) (x + 3)

• (x – 2) (x – 3)

• (x × 2) + (x × 3)

• (x × 2) – (x × 3)

Which of the following are the factors of a² + ab +bc + ca

• (b + c) (c + a)

• (a + b) (a + c)

• a(a + b + c)

• (a + b) (b + c).

Factorise

k²-2k+1

• (k⁴+2)²

• (k²+1)²

• (k-1)²

• None of these

The factorisation of 12a²b+15ab² gives:

• 3ab(4ab+5)

• 3ab(4a+5b)

• 3a(4a+5b)

• 3b(4a + 5b)

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)