Q1) solve
\( y= x^2 +9 x +84 \)
\(y= -8 x +12 \)
[ \(x= -8, y=76 \) or \( x=-9, y=84\)]

Q1) Solve
\( y= x^2 +7 x +42 \)
\(y= -7 x -3 \)
[ \(x= -5, y=32 \)
\( x=-9, y=60\)]

Q1) Solve
\( y= x^2 +7 x +12 \)
\(y= 2 x +8 \)
[ \(x= -1, y=6 \)
\( x=-4, y=0\)]

Q2) solve
\( y= x^2 +23 x +46 \)
\(y= 12 x +18 \)
[ \(x= -7, y=-66 \) or \( x=-4, y=-30\)]

Q2) Solve
\( y= x^2 +16 x +16 \)
\(y= 6 x +7 \)
[ \(x= -1, y=1 \)
\( x=-9, y=-47\)]

Q2) Solve
\( y= x^2 +2 x +40 \)
\(y= -10 x +8 \)
[ \(x= -8, y=88 \)
\( x=-4, y=48\)]

Q3) solve
\( y= x^2 +25 x +20 \)
\(y= 17 x +4 \)
[ \(x= -4, y=-64 \) or \( x=-4, y=-64\)]

Q3) Solve
\( y= x^2 +7 x +52 \)
\(y= -6 x +10 \)
[ \(x= -7, y=52 \)
\( x=-6, y=46\)]

Q3) Solve
\( y= x^2 +8 x +66 \)
\(y= -8 x +3 \)
[ \(x= -7, y=59 \)
\( x=-9, y=75\)]

Q4) solve
\( y= x^2 -2 x +44 \)
\(y= -13 x +20 \)
[ \(x= -3, y=59 \) or \( x=-8, y=124\)]

Q4) Solve
\( y= x^2 +15 x +10 \)
\(y= 9 x +5 \)
[ \(x= -1, y=-4 \)
\( x=-5, y=-40\)]

Q4) Solve
\( y= x^2 +7 x +40 \)
\(y= -4 x +10 \)
[ \(x= -6, y=34 \)
\( x=-5, y=30\)]

Q5) solve
\( y= x^2 +29 x +41 \)
\(y= 18 x +13 \)
[ \(x= -4, y=-59 \) or \( x=-7, y=-113\)]

Q5) Solve
\( y= x^2 +25 x +66 \)
\(y= 8 x -6 \)
[ \(x= -8, y=-70 \)
\( x=-9, y=-78\)]

Q5) Solve
\( y= x^2 +0 x +6 \)
\(y= -4 x +3 \)
[ \(x= -3, y=15 \)
\( x=-1, y=7\)]

Q6) solve
\( y= x^2 +7 x +96 \)
\(y= -12 x +6 \)
[ \(x= -9, y=114 \) or \( x=-10, y=126\)]

Q6) Solve
\( y= x^2 +5 x +44 \)
\(y= -10 x -6 \)
[ \(x= -10, y=94 \)
\( x=-5, y=44\)]

Q6) Solve
\( y= x^2 +14 x +69 \)
\(y= -2 x +6 \)
[ \(x= -7, y=20 \)
\( x=-9, y=24\)]

Q7) solve
\( y= x^2 +27 x +20 \)
\(y= 16 x +2 \)
[ \(x= -9, y=-142 \) or \( x=-2, y=-30\)]

Q7) Solve
\( y= x^2 +8 x +51 \)
\(y= -7 x -3 \)
[ \(x= -6, y=39 \)
\( x=-9, y=60\)]

Q7) Solve
\( y= x^2 +11x +16 \)
\(y= 4 x +10 \)
[ \(x= -1, y=6 \)
\( x=-6, y=-14\)]

Q8) solve
\( y= x^2 +25 x +11 \)
\(y= 17 x -1 \)
[ \(x= -2, y=-35 \) or \( x=-6, y=-103\)]

Q8) Solve
\( y= x^2 +22 x +38 \)
\(y= 8 x -10 \)
[ \(x= -6, y=-58 \)
\( x=-8, y=-74\)]

Q8) Solve
\( y= x^2 +x +8 \)
\(y= -8 x -10 \)
[ \(x= -3, y=14 \)
\( x=-6, y=38\)]

Q9) solve
\( y= x^2 +22 x +29 \)
\(y= 10 x -7 \)
[ \(x= -6, y=-67 \) or \( x=-6, y=-67\)]

Q9) Solve
\( y= x^2 +x +9 \)
\(y= -7 x +2 \)
[ \(x= -7, y=51 \)
\( x=-1, y=9\)]

Q9) Solve
\( y= x^2 +13 x -3 \)
\(y= 5 x -10 \)
[ \(x= -7, y=-45 \)
\( x=-1, y=-15\)]

Q10) solve
\( y= x^2 +16 x -15 \)
\(y= 11x -19 \)
[ \(x= -4, y=-63 \) or \( x=-1, y=-30\)]

Q10) Solve
\( y= x^2 +7 x +34 \)
\(y= -5 x -2 \)
[ \(x= -6, y=28 \)
\( x=-6, y=28\)]

Q10) Solve
\( y= x^2 -6 x -6 \)
\(y= -8 x -7 \)
[ \(x= -1, y=1 \)
\( x=-1, y=1\)]