Factorization

What is the factored form of x³ + 2x² - x-2

• (x+1)(x - 1 )(x+2)

• (x+1)(x - 2 )(x+2)

• (x²+1)(x+2)

• (2 +x)(x² - 1)

Factorize 25x²y - 5xy

• 5xy (x - y)

• 5xy (5x + 1)

• 5xy(5x-1)

• 5xy (5x + 5)

Factorise 21x-14

• 14(21x)

• 14(21x−1)

• 7(3x-2)

• 7(3x−14)

The factorisation of 12a²b+15ab² gives:

• 3ab(4ab+5)

• 3ab(4a+5b)

• 3a(4a+5b)

• 3b(4a + 5b)

The factorisation of 12x+36 is

• 12(x+3)

• 12(3x)

• 12(3x+1)

• x(12+36x)

What is the factored form of x² - y² - z² - 2yz?

• (x - y - z)(x - y+z)

• (x + y - z)(x - y - z)

• (x - y + z)(x + y+z)

• (x - y - z)(x + y+z)

On factorizing 14pq + 35pqr, we get:

• 7pq(2+5r)

• q(14p+35pr)

• p(14q+35qr)

• pq(14+35r)

Which of the following is the common factor of: 5xy, 3pqr and 40 xyz?

• 5

• 0

• xy

• 1

Factorise 9x-9

• 9(x)

• 9(x−9)

• 9(x−1)

• 9(x+1)

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).