How do I factorise X^2-12x+20

asked Jun 1, 2019 35.0k views

3 votes

How do I factorise
X^2-12x+20

by Sambo

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6 votes

You need 2 numbers whose product is + 20 and whose sum is - 12.

They would be -10 and -2 so the factors are:_

(x - 10)(x - 2) Answer

Koshy answered Jun 4, 2019

by Koshy

6.2k points

4 votes

SOLUTION
=x^2-(10+2)x+20
=x^2-10x-2x+20
=x(x-10)-2(x-10)
=(x-2)(x-10)

Greysteil answered Jun 8, 2019

6.0k points

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