Question

How to factorise x^2+2x-27?

Answer 1

Step-by-step explanation:

It is Given that ,

${x}^{2} + 2x - 27$

Now ,

We know That,

a(Coefficient of x^2)=1

b=2

or c=-27

We Know,

Quadratic Formula,

$x = \frac{ - b \frac{ + }{} \sqrt{ {b}^{2} - 4ac} }{2a}$

$x = \frac{ - 2 \frac{ + }{} \sqrt{4 - 4(1)( - 27)} }{2}$

$x = \frac{ - 2 \frac{ + }{} \sqrt{4 + 108} }{2}$

$x = \frac{ - 2 \frac{ + }{} \sqrt{112 } }{2}$

So Values of x are ,

$x = \frac{ - 2 + \sqrt{112} }{2} \: \: \: \: or \: \: \: \: \: \frac{ - 2 - \sqrt{112} }{2}$

Hope it Helps you!!

@chetanverma167