Factorise the following: x^2-2x-3

(x-3) (x+1)

Step-by-step explanation:

x^2-2x-3

Factor

What 2 numbers multiply to -3 and add to -2

-3*1 = -3

-3+1 = -2

(x-3) (x+1)

(x+1)(x-3)

Step-by-step explanation:

We must factorize in the form of (x+-?)(x+-?):

x^2-2x-3

(x+1)(x-3)

last option: rhombus or kite

step-by-step explanation:

a kite and rhombus have the same shape. as we don't have any specific formula for the calculation of area of kite. the diagonals are used to calculate the area of a kite or rhombus.

the formula for area of rhombus is given by:

here, d_1 is the first diagonal and d_2 is the second diagonal.

so,

last option is the correct answer ..

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option