Answer
2(h+1)(h-1)
Work Step by Step
$2h^{2}$ - 2
We see that both the terms have a two common thus we factor it out.
2($h^{2}$ - 1)
We use the formula for the difference of squares to apply to this question.
The difference of squares formula is:
$(a-b) (a+b) = a^{2} - b^{2}$
= 2($h^{2}$ - 1)
*** Take the square root of $h^{2}$ which is h. Becuase h × h= $h^{2}$
*** Take the square root of 1 which is 1. Becuase 1 × 1= 1
= 2($(h)^{2}−1^{2}$)
In the given formula let h represents a and 1 represents b.
2($(h)^{2}−1^{2}$) = 2(h+1)(h-1)
