Question

(4x+1)(4x-1),Expand the given equation.

Answer 1

(4x+1)(4x-1)

By using Identity III i.e. ( a + b ) ( a - b ) = a² - b²

(4x+1)(4x-1) =

= ( 4x )² - 1²

= 16x² - 1

Answer 2

BONJOUR,
❤ ❤ ❤ ❤

we use identity here :

(a+b)(a-b) = a^2 - b^2
$(4x + 1)(4x - 1) \\ (4x) {}^{2} - (1) {}^{2} \\ 16x {}^{2} - 1$