b = -1-7ab=−1−7a
Can be rewritten to be easier to understand.
In addition you can say the following equation is valid due to the way your problem was given to you.
Of course, you can simplify equation 2
This ends up giving you b so you don't end up having to do any substitution in order to find b. Now substitute the value for b into either equation. I'm choosing the third because it's easiest.
And there you go :)
Answer: 21n^4 -46n^3 -4n^2 +7n
Step-by-step explanation:
21n^4 +3n^3 +3n^2 -49n^3 -7n^2 +7n =
21n^4 -46n^3 -4n^2 +7n
Answer:
every term has an even factor
Step-by-step explanation:
One of the two factors of the n-th term will be even.
- for n odd, n+1 is even
- for n even, n+2 is even
If the number has an even factor, it is an even number. Every term of the sequence has an even factor, so every term will be even.
I hope this helps you
x=5+y
5 (5+y)+2y= 4
25+5y+2y=4
7y= -21
y= -3
x=5+y
x=5-3 x= 2
I think triangle ZYX by asa
