2r+1+(−4r)+7 i need to know the anwer
nia987:
-2r+8
I think
Then if this polynomial is equal to 0
Then r= 4
Answers
Answered by
6
2r-4r+8=0
-2r=-8
r=8/2
r=4
Answered by
4
2r + 1 +(-4r) + 7 = 2r + 1 - 4r + 7
0 = 8 - 2r
2r = 8
r = 4
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