Question

Factorise the following
x²+ 13x² + 32*+20​

Answer 1

Answer:

14x^2 = -52

x = +_$\sqrt{26/7}$

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Step-by-step explanation:

Answer 2

Answer:

$(x+1)(x+2)(x+10)$

Step-by-step explanation:

$x^{3}+13x^{2} + 32x + 20 = 0$

Check if (x+1) is a solution.

x+1=0 ⇒ x = -1

Substituting value of x we get,

-1+13-32+20

= 0

Therefore x+1 is a solution.

Dividing $x^{3}+13x^{2} + 32x + 20$ by $x+1$,

we get $x^{2} + 12x + 20$

= $(x+2)(x+10)$

Therefore,

$x^{3}+13x^{2} + 32x + 20 = (x+1)(x+2)(x+10)$