Solving for r:
16r2+18r+5=0
(2r+1)(8r+5)=0
2r+1=0 and 8r+5=0
2r=-1 .......... 8r=-5
r= -1/2 ........ r= -5/8
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Yes because if 1+0=1 than 0 plus b equals b
many solutions
x = y = 0 ?
1 plus 1 plus 1 plus 1 equals 1 times 4. 1 times 4 equals 4. 4 minus 4 equals 0. 0
a = 0