F3 Math Revision Assignment #3 - Factorisation

Multiple Choice

Factorize  3x+9

• 3(x+3)

• x(3+3)

• 9(x-3)

• 3x(x+9)

Multiple Choice

Factorize 25x²y - 5xy

• 5xy (x - y)

• 5xy (5x + 1)

• 5xy(5x-1)

• 5xy (5x + 5)

Multiple Choice

$$factorize.\ 2\pi r^2+2\pi rh$$  

• $$2\pi r^2\left(1+h\right)$$  

• $$\ 2\left(\pi r^2+\pi rh\right)$$  

• $$2r\left(\pi r+\pi h\right)$$  

• $$2\pi r\left(r+h\right)$$  

Multiple Choice

Factor completely: $$x^2-5x$$  

• $$1\left(x-5\right)$$  

• $$x\left(x-5x\right)$$  

• $$x\left(x-5\right)$$  

• $$x^2\left(1-5\right)$$  

Multiple Choice

x² - 9

• (x + 3)²

• (x + 3) (x - 3)

• (x - 3)²

• x + 3(x - 3)

Multiple Choice

x² - 16

• (x + 4) (x - 4)

• (x + 8) (x - 2)

• (x + 4)²

• x + 4(x - 4)

Multiple Choice

4x² - 25

• (2x + 5) (2x - 5)

• (2x - 5)²

• (2x + 5)²

• 2x + 5(2x - 5)

Multiple Choice

25x² - 36y²

• 5x + 6y(5x - 6y)

• (5x + 6y) (5x - 6y)

• (5x + 6y)²

• (5x - 6y)²

Multiple Choice

4x²y² - 1

• (2 + xy) (2 - xy)

• (2x + y) (2x - y)

• (2xy + 1) (2xy - 1)

• (2y + x) (2y - x)

Multiple Choice

Factorise $$3xy+6y+4x\ +8$$  ... 

• (x+2)(3y+4)

• (3y+2)(x+4)

• (x+3y)(x+4)

• (x+2)(x+3y)

Multiple Choice

Factorise $$5ck-5c+6-6k$$

• (5c+6)(1-k)

• (k-1)(5c-6)

• (k+1)(5c-6)

• (5c+6)(k-1)

Multiple Choice

Factorise $$ab-4ay\ -3bx+12xy$$

• $$\left(a-3x\right)\left(b+4y\right)$$  

• $$\left(a+4y\right)\left(b-3x\right)$$  

• $$\left(a-4y\right)\left(b-3x\right)$$  

• $$\left(a-3x\right)\left(b-4y\right)$$  

Multiple Choice

Factorise $$a^2b+a^2c-b^2c-bc^2$$

• $$\left(a^2-bc\right)\left(b+c\right)$$

• $$\left(a^2-b\right)\left(b+c\right)$$  

• $$\left(a^2+b^2\right)\left(b-c\right)$$  

• $$\left(b-c\right)\left(a^2+bc\right)$$  

Multiple Choice

Write the factors of  $$n^2+16n+63$$    

• $$\left(n-7\right)\left(n+4\right)$$  

• $$\left(9n+7\right)\left(n-9\right)$$

• $$\left(n-3\right)\left(n-10\right)$$  

• $$\left(n+7\right)\left(n+9\right)$$  

Multiple Choice

$$\ What\ are\ the\ factors\ of\ \ \ 3v^2-4v-7$$   

• $$\left(3v+1\right)\left(v-9\right)$$  

• $$\left(3v-7\right)\left(v-1\right)$$  

• $$\left(3v+1\right)\left(v+9\right)$$  

•   $$\left(3v-7\right)\left(v+1\right)$$

Multiple Choice

FACTORISE:

6x² + 13x + 6

• (6x + 6)(x + 1)

• (4x + 2)(2x + 3)

• (x + 5)(4x + 4)

• (3x + 2)(2x + 3)

Multiple Choice

Factorise:

$x^2+5x-50$

• $$\left(x+25\right)\left(x-2\right)$$

• $$\left(x-5\right)\left(x+10\right)$$

• $$\left(x-10\right)\left(x+5\right)$$

• $$\left(x-25\right)\left(x+2\right)$$