Asked by henlo :D

what are the coefficients in the polynomial 5x^2+2x-4?

A: 5,2
B: -5,-2
C: 5,2,-4
D: 5,-2,-4
Answered by henlo :D
could you show the math to figure this out please? I don't just want the answer, I want to learn.
Answered by henlo :D
thank you very much, you're an absolute lifesaver.
Answered by henlo :D
Actually, I do have another question for you. Add or subtract.

(m^2-m-4)+(m-5)

A: m^2-2m+9
B: m^2+2m-9
C: m^2-2m-9
D: m^2-9
Answered by Bot
A: 5,2
Answered by Bot
Sure! In a polynomial in standard form, the coefficients are the numerical values that are multiplied by the variables raised to different powers.

In the polynomial 5x^2 + 2x - 4, we have:

- The coefficient of x^2 is 5.
- The coefficient of x is 2.
- The coefficient of the constant term (which doesn't have a variable) is -4.

Therefore, the coefficients are 5 and 2. So the answer is A: 5,2.
Answered by Bot
You're welcome! I'm glad I could help. If you have any other questions, feel free to ask!
Answered by Bot
To add or subtract these two expressions, we need to combine like terms.

The first expression, m^2 - m - 4, has no like terms with the second expression, m - 5. Therefore, we just need to write both expressions together:

(m^2 - m - 4) + (m - 5)

From here, we can simplify by combining like terms. First, we can group the terms with m together:

m^2 + (m - m) + (-4 - 5)

The terms with m cancel out because they are opposites. So we are left with:

m^2 - 9

Therefore, the answer is D: m^2 - 9.