Question

9 question answer I want

Answer 1

2x2 +x -a= 5
2(0)2+0-a=5
0+0-a=5
a=-5

Answer 2

2x+x-a=5
if x=0
then a=0+0-a=5
a=-5
ya it's -5 because if a value is -5
-a=-(-5)
(-)+(-)=+
therefore a=-5