Question

factorise 2x³ - x² - 13x - 6​

Answer 1

Answer:

x = 0.54

Step-by-step explanation:

• 2x³- x² - 13x - 6
• 2x¹ - 13x - 6
• -11x-6 = 0
• -11x = 6
• x = 6/11
• x = 0.54

Answer 2

Answer:

wrong question. rightquestion is 2x³+x²-13x-6

(x-2)(x+3)(2x-1)

Step-by-step explanation:

f(x)=2x³+x²-13x-6

for x=2

f(2)=2×2³+2²-13×2-6=0

it means x=2 is a factor of f(x)

(x-2)=0

f(x) / f(2) = 2x²+5x-3=2x²+6x-x-3=2x(x+3)-1(x+3)= (2x-1)(x+3)

Factorise of

2x³+x²-13x-6= (x-2)[(2x-1)(x+3)]