Sagot :
Answer:
1. 2x²+9x-10=0 a= 2; b= 9; c= -10
2. x²+x+2=0 a=1; b=1;c=2
3.3x²-10x+9=0 a=3;b= -10;c=9
4.2x²+6x-4=0 a=2; b=6; c=-4
5.2x²-7x-8=0 a=2; b= -7;c= -8
Answer:
1. 2x²+9x-10=0 a= 2; b= 9; c= -10
2. x²+x+2=0 a=1; b=1;c=2
3.3x²-10x+9=0 a=3;b= -10;c=9
4.2x²+6x-4=0 a=2; b=6; c=-4
5.2x²-7x-8=0 a=2; b= -7;c= -8