Answer:
6. 8b²-5b-4
7. -3x²+9x-4
8. 3
9. 6a+15
Step-by-step explanation:
you will subtract/add the numbers with the same variables and exponent.
ex. (number 6) 7b²+ b²= 8b²
5b= 5b 8b²+5b-4
1-5= -4
(plus 5b because it didnt come out to a negative) if you have any questions, say in the comments and ill try my best to help
Answer:
I can't this type of mathematics
√m/3 = 4
To remove the radical sign, square both sides.
(√m/3)² = 4²
m/3 = 16
To remove the denominator of 3, multiply both sides by 3.
3 (m/3) = 3(16)
m = 48
To check: Substitute m by its value.
√m/3 = 4
√48/3 = 4
√16 = 4
4 = 4
So, I think that you mean that
n²+m² is even? (the "plus" sign is missing, but I think this is correct).
this can only happen if either:
both n and m are even
or
both n and m are odd
That's because a sum of two expressions is even if either both or none of the expressions summed is even, and a power of a number is even only if the number is even too.
are those some of the options?
yes!
<span>n and m are even,- possible!
n and m are odd, -possible!
n+m is even, - possible; it would be the case i</span><span>f either both n and m are even or both n and m are odd n+m is odd,
so the option we'll choose is:
none of these are impossible </span><span />
Answer:
6m^2
Step-by-step explanation:
1/2×2(2+4)
1/2×2×6
=6m^2
