Question

using suitable identify find the value of (x-√2) (x+2√2)​

Answer 1

x² + (2√2 - √2) x + √2 × 2√2

x² + √2x + 4

here is your answer

this is made by the formula of

(x+a)(x+b) = x² + (a+b)x + ab

Answer 2

(x+a)(x+b) = x^2+(a+b)x+a.b

(x-√2) (x+2√2) = x^2+(- √2 +2√2)x+( -√2) (2√2)

=x^2 +√2x-4

please mark me brainlist