Question

Number split
${25a}^{2} - 64a {}^{2}$
​

Answer 1

Step-by-step explanation:

25a²-64a²

-39a².

Hope you get the correct answer.

Answer 2

$= 25 {a}^{2} - 64 {a}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = (5 {a})^{2} - (8a )^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = (5a + 8a) \: (5a - 8a) \:$