Question

4x^2-16x^2.
please solve​

Answer 1

4x^² - 16x^²

(2x)^² - (4x)^²

now it is in the form of (a^² - b^²)

( a+b)(a-b)

so, (2x+4x)(2x-4x)

6x*-2x

-12x^²

so 4x^² -16x^²= -12x^²