Posted by **B8** on Monday, February 10, 2014 at 9:03pm.

from the expression below, which one is not factorable?

1)x^2+4x+6

2) 3ab^2-16a

3)x^2-441

4)4x^2+19x-5

I thought the answer was 2) b is not in the second part of the equation(the 16a)

Is this correct?

Thanks for checking my work

## Answer this Question

## Related Questions

- algebra - What is the equation in standard form of a parabola that models the ...
- College Algebra - I need some help with a few problems. They are multiple choice...
- Algebra - Below is my problem with my answers. I don't think this is that tough...
- Math. - Use the distributive property of multiplication over addition to rewrite...
- Precalc/Trig - I don't understand how to do these problems: Find two pairs of ...
- algebra - completely factor the following expression. 16a^2-40ab+25b^2
- Math - What is the value of a in terms of b? 3ab=6 Divide both sides of that ...
- Algebra 2 - 4a+2b+c=10 100a+10b+c=12 16a+4b+c=12 I need help to solve this ...
- Algebra 1 - SUBTRACT THE POLYNOMIALS. (-9a^2+9a+4)-(7a^2+4)=-16a^2+9a Help ...
- Math 8R: Homework Check - Part 2 - Part 2: Simplify by combining like terms and...