Question

Factor x2 + 16 completely.

a (x + 4)(x + 4)

b (x + 4)(x − 4)

c Prime

d (x − 4)(x − 4)

Answer 1

prime

Explanation:

I tried to delete my answer

Answer 2

Prime

Solution:

• Let's factor this expression.
• x^2+16
• The expression is prime.
• Let's see why all the other options are wrong.
• Option A) (x+4)(x+4)
• x*x
• x*4
• 4*x
• 4*4
• This makes x^2+8x+16, not x^2+16.

Hope it helps.

Do comment if you have any query.