Factor difference of 2 squares, algebra 2. help!?

Question

i need help understanding how to do this!

i have to factor completley (diffrence of two squares)

how do you do this: a*-25 (*=exponent "2")

Answer 1

I'll save you some time. The answer is $234.00

Answer 2

Difference of two squares: a^2 - b^2 = (a + b)(a - b)

a^2 - 25

(a + 5)(a - 5) <===

Here's a few examples:

4a^4 - 64 = (2a^2 + 8)(2a^2 - 8)

81b^2 - 49 = (9b + 7)(9b - 7)

16x^8 - 144 = (4x^4 + 12)(4x^4 - 12)

Answer 3

it would be (a-5)(a+5) start out by putting two sets of parentheses with a variable in each, assuming the exponent is two, and then you look at the constant (c), in this case its 25. so, then you have to find the two numbers that will add to zero because you dont have another term (bx), and will multiply to what (c) is, which is 5 and -5.