Question

x2-12x-220 factorise
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Answer 1

Step-by-step explanation:

2x - 12x - 220 = 0

- 10x=220

x = 220/-10

= -22

Answer 2

Given,

$x ^{2} - 12x - 220$

To find,

The factors of the given expression.

Solution,

The factors of the given expression will be (x-22)(x+10).

We can easily solve this problem by following the given steps.

According to the question,

We have the following expression:

x²-12x-220

Now, we can factorise it by splitting the middle term because we can not factorise it using the identity method or by taking the common.

The middle term is to be split into the two terms such that their subtraction gives -12x and multiplication is (-220×x²).

These two terms are -22x and 10x.

x²-22x+10x-220

x(x-22)+10(x-22)

(x-22)(x+10)

Hence, the factors of (x²-12x-220) are (x-22)(x+10).