Question

(\frac{5}{5}+2y )(\frac{5}{5}-2y )

Answer 1

Объяснение:

$\displaystyle\\(\frac{5}{5}+2y )(\frac{5}{5}-2y )=(1+2y)(1-2y)=1^2-(2y)^2=1-4y^2.$

Answer 2

To simplify the expression $\left(\frac{5}{5}+2y\right)\left(\frac{5}{5}-2y\right)$, we can apply the difference of squares formula. The formula states that $a^2 - b^2 = (a + b)(a - b)$.

In this case, we can rewrite the expression as:

$\left(\frac{5}{5}\right)^2 - (2y)^2$

Simplifying further:

$\left(\frac{1}{1}\right)^2 - 4y^2$

$1 - 4y^2$

So, the simplified expression is $1 - 4y^2$.