# How do you factor 36y^2-16?

$36 {y}^{2} - 16 = {\left(6 y\right)}^{2} - {4}^{2} = \left(6 y - 4\right) \left(6 y + 4\right)$
${a}^{2} - {b}^{2} = \left(a - b\right) \left(a + b\right)$