Please solve this using factoring?

Question

25 - (z+5)^2

Answer 1

When you have a^2 - b^2 the factors are (a + b)(a - b)

in the case a = 5 and b = (z + 5) and the factors become

(5 + (z + 5))(5 - (z + 5))

This can become (10 + z)(-z) so the factors are (10 + z) and -z.

Answer 2

I think you mean, Solve this using factorizing...

anyaway,

25-(z+5)^2

Just expand the brackets, so that there is no squared anymore...

25 - (z+5)  (z+5)

now by multiplying out you get....

25 - z^2 + 5z+5z+25

Now adding together...

25-z^2 + 10z + 25

50 + z^2 + 10z

I think thats how it should be....