Question

Factorise polynomial 4x2-4root7x+7

Answer 1

Answer:

(2x-√7)(2x-√7)

Step-by-step explanation:

4x*2-4(√7)x+7

=(2x) *2-2(2x)(√7)+7

It is in the form(a-b) *2=a*2+2ab+b*2

Here a=2x b=√7

=(2x-√7)*2

=(2x-√7)(2x-√7)

Hope it helps you