I think its ummm uhhh mmmm uhhhh
40 tens is another way of writing 4 hundreds because 40 tens would give you 400 and 4 hundreds also give you 400.
I think it is x² - 10x + 21 = 0.
<h3>Answer:</h3>
Prime
<h3>Solution:</h3>
- 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.
