Question

find the value of (80^2-78^2)​

Answer 1

Answer:

${80}^{2} - {78}^{2} \\ = {2}^{2} \\ = 4$

Answer 2

Answer:

316

Step-by-step explanation:

$x^{2} - y^{2} = (x+y)(x-y)\\80^{2} - 78^{2} = (80+78)(80-78)\\ = 158 X 2\\ = 316$